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# Karnataka CET Mock Physics Test

3 Questions

To help you prepare for Karnataka CET. Take this test and be a winner! Better than any win you've had. Even better than the recent Indian victory Down Under.

• 1.
The frequencies of two tuning forks are 480 cps and 480.05 cps respectively. When sounded together, after how much interval the maximum sound will become half if the minimum intensity is zero ?
• A.

5 s

• B.

10 s

• C.

20 s

• D.

0.025 s

• 2.
The Laplace's correction for the expression for the velocity of sound given by Newton was needed because the sound waves
• A.

Are Longitudinal

• B.

• C.

Propagate isothermally

• D.

Have long wave lengths

• 3.
The equation of a wave traveling on a string is given by y = 10 sin [PI] /2 (8t - x/8); where x and y are in cms. The velocity of the wave is
• A.

32 cms in the negative x-direction

• B.

32 cms in the positive x-direction

• C.

64 cms in the negative x-direction

• D.

64 cms in the positive x-direction

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