General Knowledge: Physics Questions Answer GK Quiz

Physics Question Answer 2023, Physics Quiz Questions 2023

Q. Two resistors R1and R2 arranged in parallel combination in an electrically closed circuit are made of the same material and of the same thickness. If the length of R2 is twice the length of R1,then the total resistance R satisfies -
1) 3R = 2R1
2) 3R = 2R2
3) 2R = 3R1
4) 2R = 3R2

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Q. According to Fleming's right-hand rule, if the forefinger indicates the direction of the magnetic field and the thumb shows the direction of motion of the conductor, then the stretched middle finger will predict the direction of -
1) force acting on the conductor
2) electric field
3) induced current
4) current

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Q. All objects experience a buoyancy when they are immersed in a fluid. Buoyancy is -
1) a downward force
2) a downward pressure
3) an upward force
4) an upward pressure

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Q. A sound wave has a frequency of 1 kHz and a wavelength of 50 cm. How long will it take to travel 1 km?
1) 5 s
2) 4 s
3) 3 s
4) 2 s

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Q. The energy possessed by a body due to its change in position or shape is called -
1) thermal energy
2) potential energy
3) kinetic energy
4) electric energy

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Q. A boy of mass 52 kg jumps with a horizontal velocity of 2 m/s onto a stationary cart of mass 3 kg. The cart is fixed with frictionless wheels. Which one of the following would be the speed of the cart?
1) 2.15 m/s
2) 1.89 m/s
3) 1.51 m/s
4) 2.51 m/s

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Q. A 5N force is defined when a mass of 10 kg is accelerated with -
1) 5.0cm/s2
2) 0.5 m/s2
3) 0.5 cm/s2
4) 5.0 m/s2

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Q. A mass M is dragged by a pulley on a horizontal plane by a force anti-parallel to its displacement. The work done in pulling the mass M is -
1) zero
2) positive
3) infinite
4) negative

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Q. The twinkling of a star is due to the atmospheric -
1) diffraction of starlight
2) reflection of starlight
3) refraction of starlight
4) dispersion of starlight

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Q. The time period of a 1 m long pendulum approximates to --
1) 6 s
2) 4 s
3) 2 s
4) 1 s

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