Accelerate JEE 2020: Waves Class 5 (17.08.2019)

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Question 1

The displacement y of a particle in a Medium can be expressed as y = 10^–6sin(100t + 20x + π/4)m, where t is in second and x in meter. The speed of the wave is

• A20 m/s
• B5 m/s
• C2000 m/s
• D5π m/s

Question 2

Represents an equation of a progressive wave, where t is in second and x is in meter. The distance travelled by the wave in 5 sis

• A8 m
• B10m
• C5 m
• D32m

Question 3

Two waves moving through space in +x-direction are represented as:

The phase difference between them is:

• A
• B
• C
• D

Question 4

Equations of two progressive waves are given by and. If amplitude and time period of resultant wave are same as that of both the waves, then is:

• A
• B
• C
• D

Question 5

The displacement y of wave travelling in the x-direction is given by y = 10^–4sin metres, where x is expressed in metres and t in seconds. The speed of the wave-motion, in ms^–1 is

• A300
• B600
• C1200
• D200

• 214 attempts
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