The property that is propagated in a traveling wave is?
A. frequency B. amplitude C. energy D. wave length Correct Answer: Option C – energyTo produce an enlarged and erect image with a concave mirror; the object must be positioned?
A. at the principal focus B. beyond the centre of curvature C. between the principal focus and the centre of the curvature D. between the principal focus and the pole Correct Answer: Option D – between the principal focus and the...
Which of the following is a characteristics of stationary waves?
A. They are formed by two identical waves traveling in opposite directions B. they can be transverse or longitudinal C. The distance between two successive nodes is one wavelength D. The antinode is a point of minimum displacement Correct Answer: Option A – They...
Which of the above will affect the velocity of sound in the air?
I. Temperature. II. Density of air molecules III. Pressure IV. Pitch A. I and II only B. II and IV only C. I, II, and IV only D. I, II, III and IV Correct Answer: Option A – I and II only Explanation Air pressure has no effect on speed of sound in an ideal gas...Products
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