RPSC RAS · Science, Technology and Environment
Physics in everyday life
Force, motion, electricity, light, sound, modern physics applications.
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Take a full mock →Q1 · Physics in everyday life · EASY
A passenger standing in a moving bus falls backward when the bus suddenly starts moving forward. This phenomenon is best explained by which law of motion?
Q2 · Physics in everyday life · MEDIUM
An electric iron operating at 220 V draws a current of 5 A. If it is used for 2 hours daily, what will be the electrical energy consumed in one month (30 days)?
Q3 · Physics in everyday life · MEDIUM
A concave mirror is used by dentists to examine teeth. If a tooth is placed 2 cm from a concave mirror of focal length 3 cm, what type of image will be formed?
Q4 · Physics in everyday life · EASY
A person hears an echo from a cliff 3 seconds after firing a gun. If the speed of sound in air is 340 m/s, what is the distance of the cliff from the person?
Q5 · Physics in everyday life · HARD
In a photoelectric effect experiment, when light of frequency f1 is incident on a metal surface, electrons are just emitted. When light of frequency f2 (where f2 > f1) is used, electrons are emitted with kinetic energy. What happens if the intensity of light of frequency f1 is increased while keeping the frequency constant?