CULTURAL QA 06-2023-06 by Mr G and retorts as in TORT by KR6623
Q1 Can two waves have the same wavelength but different frequencies? Can two waves have the same frequency but different wavelengths? G My note- The equation takes me to the nostalgic college days when I studied “light” under Physics during 1961-1964 and calculation of wavelengths of beams using spectrometer in the lab. KR second time he is stating it and is there any college teaching Light alone for 3 years in the graduation? Now the physics man is confused. The speed of any periodic wave is the product of its wavelength and frequency. v = λf. The speed of any electromagnetic waves in free space is the speed of light c = 3*108 m/s. Electromagnetic waves can have any wavelength λ or frequency f as long as λf = c. Now the light speed is the EM wave speed viz photon movements. Hence C is always constant being 3*108 m/s; Now Lambda is wave length, where photon is doing wave pattern , not as particle. (Quantum Mechanics) In general yes, it is possible. Since λ=C/f, any set of C and f with the same ratio will give the same wavelength. e.g. the set C=1m/s and f=1s−1 as well as the set C=2m/s and f=2s−1 both give a wavelength of 1m. Now same wavelength can have same frequency is feasible ( I said feasible only though technically such handlings are not done) . FREQUENCY IS A SIMPLE TERM: PERSECOND HOW MANY TIMES THE SINE CURVE (WAVE)REPEATS. Now within a second sine curve can be slower making 5 waves; it can make 10 also faster; may be 30 also and can keep on producing speed variation is made. In the above example one wave per second and 2 waves per sec will have to be within the light speed that is all. That is in percussions ewe say, 8 beats, 4 by 8 beats 2 by 4 beats etc ; or playing in which column. Faster can 8 beats be played as 16, 24,36 etc, by which the producing of sound wave will be heard as slow beats to faster beats. That means, in light speed, whether slow beats within a second or fast beats within that second, are same to reach your ears. WHAT IS BIG ABOUT IT? Radio frequency is within 200 kilo hertz (frequency is measured by hertz which you might see in the brochure and at the back of the machine showing KILOHERTZ.) only. 98.3 FM station is within 98.4 and 98.2; in that frequency on air the radio wave I sent per second, This is taught not only in light , also in sound and mechanics. I have also done and taught physics to students with age difference of low frequency. Q2 Will you support Ashwini Vaishnaw, Railway Minister, after the Balasore rail accident? A2 Madan, Former Medical at Naval Forces (non-specific) (2004–2019)23h These are the merits of Ashwini Vaishnaw railway minister. He is a gold medal in B-Tech He is ECE -M.Tech from IIT Kanpur - HE CLEARED ALL INDIA RANK 27 IN IAS - He is Deputy Secretary to the Government of India He is an MBA from the University of Pennsylvania MD, He is GE Transportation of America - He is VC of Siemens, Germany Chairman of Murmugao Port Authority. This is the Picture of the Day. After 51 hours Train movement resumed in the affected section. Railway Minister Ashwini Vaishnav worked nonstop. He is still at the spot to lead his team.No doubt. I will support my best railway minister. G My note- I have added this QA only for the qualifications of our Railway minister. KR Thank GOD that he accepted the retired IAS as qualification. Then he is partial and few others in this group also, derailing the qualification of civil service as formerly, mentally etc and are you still working etc? Elephant showers sand on its head? Blood sugar levels as usual a rama bhajanai Compiled and posted by R. Gopala krishnan, former ITS, on 06-06-2023 Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx CULTURAL QA 06-2023-06A by Mr G and content really intented by KR IRS 6623 Q1 Is fruit salad healthy? G My note- Fruit salad with ice cream top will be tastier. KR elsewhere below seen doctor said once a while has it then what is there in life; because as fool you will be giving him more money; which doctor will not, advice like that? Fruit salad is not good as payasam etc. If you taste it you have to walk equivalently, to deny it mixing in the blood. Neuropathy, and antipathy will follow. Taking life easier is your choice but pl do not justify using doctor. Q3 What are some interesting facts which are not commonly known? G Human eyes are made of nearly 2 million working parts. KR where stated sir? Have you checked it or blindly followed? G Every person on this planet has an individual smell. KR Again pl prove it don’t say he said it etc. Get that right sir. G TONGUE is the fastest healing part of body. KR again an error; many more can get cured faster subject to your body condition. G The human body is made up of 0.2 milligrams of gold. KR Again pl prove it. G Females are better than males at remembering faces. KR PSYCHOLOGICALLY A BIG NO. G There will be more plastic in our oceans than fish by 2050. Kr It is spoken and not true Pl don’t write gossips. Compiled and posted by R. Gopala krishnan, former ITS, on 06-06-2023 K Rajaram IRS 6623 *'gopala krishnan' via iyer123* Tue, 6 Jun, 17:27 (9 hours ago) to 'N Thank you Mr Sekar for reading the QA and response with additions.My doctor has said, once a month diabetics can have the type of the food items as they desire. Otherwise there is no meaning of life.So once a while having Payasam, fruit salad, coffee added with sugar etc may not harm the organs connected with diabetics. Gopalakrishnan On Mon, 5 Jun 2023 at 17:53, 'gopala krishnan' via iyer123 < [email protected]> wrote: > * CULTURAL QA 06-2023-06 Q1 Can two waves have the same > wavelength but different frequencies? Can two waves have the same frequency > but different wavelengths? A1 Info Sage, Professional Maven13h > Two waves can indeed have the same wavelength but different frequencies. > The relationship between wavelength (λ), frequency (f), and the speed of > light (c) is given by the equation c = λf, where c is a constant. This > equation shows that wavelength and frequency are inversely proportional to > each other when the speed of light remains constant. My note- The equation > takes me to the nostalgic college days when I studied “light” under > Physics during 1961-1964 and calculation of wavelengths of beams using > spectrometer in the lab. Therefore, if the wavelength of one wave is the > same as the wavelength of another wave, their frequencies will be different > if the waves are traveling at the same speed. To understand this concept > better, let's consider an example using electromagnetic waves. > Electromagnetic waves include visible light, radio waves, microwaves, > X-rays, and many other forms of radiation. In the electromagnetic spectrum, > different types of waves have different wavelengths and frequencies. For > instance, radio waves have much longer wavelengths and lower frequencies > compared to visible light waves. Suppose we have two electromagnetic waves, > one in the radio wave range and another in the visible light range, that > both have a wavelength of 500 nanometers (nm). Despite having the same > wavelength, these two waves will have different frequencies because their > speeds of propagation differ. The radio wave will have a lower frequency > compared to the visible light wave since radio waves travel at a slower > speed than visible light. On the other hand, two waves can also have the > same frequency but different wavelengths. If the frequencies of two waves > are the same, their wavelengths will be different if the waves are > traveling at the same speed. This phenomenon is observed in Doppler effect > situations. The Doppler effect occurs when there is relative motion between > the source of a wave and an observer. It causes a shift in frequency and > wavelength of the wave. For instance, consider two sound waves with the > same frequency, but one is emitted by a moving object and the other by a > stationary object. As the moving object approaches the observer, the > wavelength of the sound wave decreases, resulting in a higher frequency. > Conversely, as the moving object recedes from the observer, the wavelength > of the sound wave increases, leading to a lower frequency. In summary, > while two waves can have the same wavelength but different frequencies, or > the same frequency but different wavelengths, it is important to understand > the relationship between wavelength, frequency, and the speed of > propagation for a given type of wave. This relationship determines how > changes in wavelength or frequency can occur while keeping other parameters > constant. My note- The different radio stations worked/works with different > wavelengths either through terrestrial transmission or though satellite. > The same with television channels also. Q2 Will you support > Ashwini Vaishnaw, Railway Minister, after the Balasore rail accident? > A2 Madan, Former Medical at Naval Forces (non-specific) > (2004–2019)23h These are the merits of Ashwini Vaishnaw railway minister. > He is a gold medal in B-Tech He is ECE -M.Tech from IIT Kanpur - HE CLEARED > ALL INDIA RANK 27 IN IAS - He is Deputy Secretary to the Government of > India He is an MBA from the University of Pennsylvania MD, He is GE > Transportation of America - He is VC of Siemens, Germany Chairman of > Murmugao Port Authority. This is the Picture of the Day. After 51 hours > Train movement resumed in the affected section. Railway Minister Ashwini > Vaishnav worked nonstop. He is still at the spot to lead his team.No doubt. > I will support my best railway minister. My note- I have added this QA only > for the qualifications of our Railway minister. Q3 How far should > a septic tank pipe hang over the tank? A3 Gopala Krishnan, Former > Assistant General Manager 1996-2004 at Department of Telecom > (1966–2004)11mo I am from Chennai, India. Earlier the exhaust was erected > in a corner of septic tank. Normally septic tanks are constructed in front > to one side of home, so that Lorries can collect the waste when tank is > full , keeping lorry in road, using flexible pipe to suck the contents of > septic tank using a motor. Nowadays, the exhaust is erected in the middle > of septic tank line and perforated cover is provided. One has to SEARCH > some times to see where the exhaust is provided. This is erected to a > height of above 15 feet, by PVC non flexible pipe. As far as flats are > combined, there could be more septic tanks, Lorry could go inside and > exhausts must be somewhere in the open area/close to walls. Height of the > PVC non-flexible pipe may be above 25–30 feet. My note- The idea is > creation of different gases can be in the pipe line also, hence central > placing will enable escaping of gases in a better manner. This answer was > found among many answers in the Quora, somewhere in the middle for the QA > and I thought of providing my published answer in the Quora. Q4 > How fast do helicopter blades spin to get off the ground? A4 > Erika Fernandez, Experience in Aviation Field Sun In general, helicopter > blades spin at between 200 and 600 revolutions per minute (RPM), which > means they complete 200 to 600 full rotations around the rotor hub every > minute. The larger and heavier the helicopter, the slower the blades need > to spin to produce enough lift. For example, the huge Boeing CH-47 Chinook > helicopter, which can carry up to 55 passengers or 28,000 pounds of cargo, > has blades that spin at approximately 225 RPM. On the other hand, a smaller > and lighter helicopter like the Robinson R22 Beta, which can seat two > people or carry 500 pounds of payload, has blades that spin at around 530 > RPM. The length of the blade also affects the spin speed. The longer the > blade, the more air it can push down and create lift. However, there is a > limit to how long the blades can be, because they cannot exceed the speed > of sound at their tips. If they do, they would create shock waves that > would cause severe vibrations and loss of control. Therefore, shorter > blades can spin faster than longer ones without going supersonic. The speed > of the rotor also changes depending on the flight condition of the > helicopter. The blades are designed to rotate within a narrow range of a > few percent of their normal speed. However, during climbing, descending, > cruising, or maneuvering, the pilot can adjust the pitch angle of the > blades to increase or decrease their lift and thrust. This also affects > their rotational speed slightly. My note- Not related to helicopter, but > relating to RPM. In washing machines during drying the RPM is set to 800 > RPM. This can be altered manually to 400 RPM so that the momentum can be > reduced. So the rotation of drum is much more than that of helicopter > blades. Q5 What are the latest blood sugar levels suggested and > approved by ADA? A5 PharmaRx,14h As of my knowledge cut off in > September 2021, the American Diabetes Association (ADA) recommends the > following blood sugar level targets for adults with diabetes: Fasting Blood > Glucose (measured after not eating for at least 8 hours): 80-130 mg/dL > (4.4-7.2 mmol/L) Postprandial Blood Glucose (measured 1-2 hours after > starting a meal): Less than 180 mg/dL (10.0 mmol/L) However, it's important > to note that blood sugar targets can vary depending on individual > circumstances, including age, overall health, duration of diabetes, and > presence of other medical conditions. All the above QA are from Quora > website on 06--06- 2023. Quora answers need not be 100% correct answers > . Compiled and posted by R. Gopala krishnan, former ITS, on 06-06-2023 * > > > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/iyer123/854126097.32192.1686012811664%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/854126097.32192.1686012811664%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/CAL5XZopv6%2BrLLXFPdYJYv4dWNEEfxOWBFOVTvVbqKH7JV61XBw%40mail.gmail.com.
