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While traversing session road, you saw the arrows painted on the roads. You ignored the arrow and continued walking. Suddenly you saw a policeman who is 5 m away from you. How long will it take for the policeman to arrive at your location if he is walking with a speed of 2 m/s?
An ideal gas with gamma=1.30 occupies 7.0 L at 300 K and 200 kPa pressure.
It is compressed adiabatically to 1/7 of its original volume, then cooled at constant volume to 300 K, and finally allowed to expand isothermally to 7.0 L.
The pressure of an ideal gas is reduced by 50%, resulting in a decrease in temperature to 75% of the initial value. Calculate the ratio of the final to initial volumes of the gas.
- A standing wave has a frequency of 324 HZ. It is vibrating in 4 sections. Calculate the velocity of the wave if the length is 3 metres. L=n λ/2 (/2)
B. If the length of the string was shortened to 2 metres, determine the period of the wave? (/2)
C. Determine the fundamental frequency (n=1) for both lengths of string. (/2)
What is the difference between a reflected wave at a fixed-end versus a free-end boundary?
- Red Light in air has a frequency of 4.3 x 1014 Hz. What is the speed in glass for red light if it has a wavelength of 4.65 x 10-7 m? (/2)
- The wavelength of electromagnetic waves from a radio station is 2.97 x 102 m. What is the velocity of the wave if the frequency is 1.00 x 106 Hz (/2)
A wave is 2.30 m long before transmission. After transmission, it is travelling at 5.26 m/s with a wavelength of 1.75 m. What is the velocity of the wave before transmission?
A transmitted wave with a length of 2.00 m can travel 75.0 m in 30.0 s. If the wave was travelling at 3.00 m/s in the initial medium, what was the wavelength?
A rope that is 1.50 m long exhibits a standing wave pattern with 6 nodes. If the frequency of the waves is 75.0 Hz, what is the velocity of the waves?
