The phenomenon of beats can take place
(a) for longitudinal waves only
(b) for transverse waves only
(c) for both longitudinal and transverse waves
(d) for sound waves only.
The phenomenon of beats can take place for both longitudinal and transverse waves only conditions to be followed is the difference in the frequencies should be slight and the amplitudes equal.
Ultrasonic waves are those waves which have frequency more than 20 kHz.
Bats use ultrasonic waves to fly and search for their prey at night without colliding.
Bat produces ultrasound waves in...
Correct Answer is: (d)
Sound is transmitted by particles (atoms or molecules) in a solid, liquid or gas colliding with each other. It is a wave which is created by vibrating...
(b) may be longitudinal
(d) may be transverse.
EXPLANATION:
Both types of wave can travel through a solid. So it can either be a longitudinal wave or a transverse wave.
(a) must be longitudinal
EXPLANATION:
Only a longitudinal wave can move in a gas because the particles of the gas are not close enough to allow a transverse wave.
(a) longitudinal stationary waves
EXPLANATION:
An organ pipe open at both ends contains sound waves which are longitudinal waves, so the option (c) and (d) are not true. When the waves enter...
(c) both particle and wave phenomenon.
EXPLANATION:
The photoelectric effect shows it as a particle phenomenon while the interference and diffraction of light shows it as a wave phenomenon. Hence duel...
(b) light goes from optically denser medium to rarer medium
EXPLANATION:
When the light goes from a denser medium to lighter medium, it goes away from the normal. When the angle of...
(b) According to Snell’s Law, sin i/ sin r =μ 2/μ 1 = where r = 90º for particular incidence angle called critical angle. When the incidence angle is equal to or greater than...
