Potential energy of a particle performing linear S.H.M is 0.1 π2
x2 joule. If the mass of a particle is 20g, find the frequency of S.H.M.?
Ans. 0.8 Hz
Ques 2. A star ‘A’ has Radiant power=3 times that of Sun,temperature
was A=6000k Sun=2000k what is ratio of there radius
Ans. 1:27
Ques 3. Speed of wave=30m/s if distance between 11 creast is 1m
then what is frequency (in Hz)
Ans. 330 Hz
Ques 4.The fundamental frequency of a closed organ pipe of length
20 cm is equal to the second overtone of an organ pipe open at both
the ends. The length of the organ pipe open at both the ends is .
Ans. 1.2 m