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MDCAT Past Papers - UHS - Physics - Chap No 5 - 2011 Quiz

Attempt 10 MCQs on MDCAT Past Papers - UHS - Physics - Chap No 5 (Year 2011) | Quiz 1

1. A source of sound waves emits frequency "f". If "v" is speed of sound waves, then what will be the wavelength of the waves?

v/f
vf
v = U/f
(v − U₀)f

2. Sodium line from star = 589nm, in lab = 497nm. This means the star is:

Moving away from the Earth
Moving towards the Earth
Stationary
Revolving around a planet

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