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Q 1/8
Score 0
Find the frequency of a tuning fork that takes 2.5 x 10β-3β s to complete one oscillation
30
400
Q 2/8
Score 0
If we send a beam of light from glass (n=1.5) to Sapphire at an angle of 300 what will the angle of refraction be?
45
26.18
8 questions
Q.
Find the frequency of a tuning fork that takes 2.5 x 10β-3β s to complete one oscillation
1
30 sec
Q.
If we send a beam of light from glass (n=1.5) to Sapphire at an angle of 300 what will the angle of refraction be?
2
45 sec
Q.
Suppose light (speed 3 x10^8 ms-1) travels from air to a Sapphire (n =1.7) what will itβs new speed be?
3
45 sec
Q.
Calculate the wavelength of a standing wave on a string that has a length of 0.84m when, it is vibrating at its fundamental frequency
4
45 sec
Q.
Calculate the wave-speed, if at the third overtone the string has a wavelength of 0.42m and a frequency of 1200 HZ
5
45 sec
Q.
A wave of frequency 2.5Hz travels along a stretched string at 20m/s. Calculate the phase difference (in degrees) between two points on the string which are 2m apart.
6
45 sec
Q.
Calculate the velocity of a wave of frequency 350Hz if the least distance between two points with a phase difference of 30 degrees is 0.8 m
7
45 sec
Q.
If the wavelength of a wave increases, what happens to the amplitude of that wave?
