physics

An image which cannot be formed on a screen is said to be?

A. inverted B. real C. virtual D. erect E. blurred Correct Answer: Option C - virtual

5 years ago

Longitudinal waves cannot be?

A. diffracted B. retracted C. polarized D. reflected E. superposed Correct Answer: Option C - polarized

5 years ago

Which of the following is correct about light and sound waves?

A. Both of them are associated with energy transfer B. Both of them need material media for propagation C. they…

5 years ago

A man stands in front of a tall wall and produces a sound. If he receives the echo of the sound two seconds later, calculate his distance from the wall. (The speed of sound in air is 330m/s)

A. 600m B. 400m C. 330m D. 328m E. 165m Correct Answer: Option C - 330m Explanation = vt/2 =…

5 years ago

Which of the following have the longest wavelengths?

A. Infra-red rays B. Gamma rays C. X-rays D. Ultra-violet rays E. Radio waves Correct Answer: Option E - Radio…

5 years ago

An object is placed between two mirrors which are inclined at an angle of 120° and facing each other. Determine the number of images observed in the two mirrors?

A. 1 B. 2 C. 3 D. 4 E. 5 Correct Answer: Option B - 2

5 years ago

How far will a body move in 4 seconds if uniformly accelerated from rest at the rate of 2m/s²?

A. 32m B. 24m C. 16m D. 1.2m E. 5m Correct Answer: Option C - 16m

5 years ago

An object is projected with a velocity of 100 m/s from the ground level at an angle θ to the vertical. If the total time of flight of the projectile is 10s. Calculate θ. (g = 10 ms−²).

A. 0° B. 30° C. 45° D. 60° E. 90° Correct Answer: Option B - 30° Explanation T = 2u…

5 years ago

A particle starts from rest and moves with a constant acceleration of 0.5 ms−²? Calculate the time taken by the particle to cover a distance of 25m.

A. 25s B. 7.1s C. 10.0s D. 50.0s E. 100.0s. Correct Answer: Option C - 10.0s Explanation S = ut…

5 years ago

A body of mass m = 0.5 kg is suspended by a string and pulled by a horizontal force 12N of as shown in the diagram: Calculate the tension T in the String if the body is in equilibrium. [Take g as 10m/s]

A. 7.0 B. 10.9 C. 12.5 D. 13.0 E. 17.0 Correct Answer: Option D Explanation Mg = 5N T² =…

5 years ago
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