Question 1:
moderateIn a gaseous medium on increasing temperature 800 K, speed of sound becomes √5 times of initial then initial temperature of medium in °C is
Practice NEET Waves Questions
Question 2:
easyVelocity of sound in medium is V. If the density of the medium is doubled, what will be the new velocity of sound ?
Question 3:
moderateFor sound waves propagating in a medium, identify the property that is independent of the others :
Speed of sound wave depends on medium and is independent of wavelength and frequency.
Question 4:
easySpeed of sound waves in a fluid depends upon
Question 5:
moderateTwo waves of amplitude 2A and A of same frequency and velocity propogate in same direction with same phase. Then resultant amplitude is
Resultant amplitude
\[ R= \sqrt{A^{2}+(2A)^{2}+ 2A.2A cos\theta} \]
As θ = 0º
R= A+2A=3A
Question 6:
moderateTwo waves of intensity I1 and I2 propagate in a medium in same direction. Then sum of maximum and minimum intensity is
\[ I _{max= }\left( \sqrt{I_{1}} +\sqrt{I_{2}}\right)^{2} \]
\[ I _{min = }\left( \sqrt{I_{1}} - \sqrt{I_{2}}\right)^{2} \]
\[ I _{max} + I _{min} = 2(I_{1} + I_{2})\]
Question 7:
easyTwo waves of intensity ratio 9 : 1 produce interference then
\[ \frac{I _{max}}{I _{min} } = \]
Question 8:
easyIn a stationary wave all the particles
Question 9:
easyThe particle displacement (in cm) in a stationary wave is given by y(x, t) = 2 sin (0.1 πx) cos (100 πt). The distance between a node and the next antinode is
Question 10:
difficultTwo wires are kept tight between the same pair of support. The tensions in the wires are in the ratio 2 : 1, the radii are in the ratio 3 : 1 and the densities are in the ratio 1 : 2. The ratio of their fundamental frequencies is