Physics Questions and Answers
General Knowledge Physics Questions with Answers focus on principles and concepts of physics. Common in SSC, UPSC, and Banking exams, they help candidates strengthen scientific reasoning and problem-solving skills
Physics
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77 questions
21. Magnetism at the centre of a bar magnet is
- minimum
- maximum
- zero
- minimum or maximum
22. It is more difficult to walk on a sandy road than on a concrete road because
- sand is soft and concreter is hard
- the friction between sand and feet is less than that between concrete and feet
- the friction between sand and feet is more than that between concrete and feet
- the sand is grainy but concrete is smooth
23. Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
- 0.14 m/s
- 140 m/s
- 1.4 km/s
- 14 m/s
24. Of the following properties of a wave, the one that is independent of the other is its
- amplitude
- velocity
- wavelength
- frequency
25. Flux is the unit of
- intensity of illumination
- luminous efficiency
- luminous flux
- luminous intensity
26. On a rainy day, small oil films on water show brilliant colours. This is due to
- dispersion
- interference
- diffraction
- polarization
27. Point A is at a lower electrical potential than point B. An electron between them on the line joining them will
- move towards A
- move towards B
- move at right angles to the line joining A and B
- remain at rest
28. Materials for rain-proof coats and tents owe their water-proof properties to
- surface tension
- viscosity
- specific gravity
- elasticity
29. RADAR is used for
- locating submerged submarines
- receiving a signals in a radio receiver
- locating geostationary satellites
- detecting and locating the position of objects such as aeroplanes
30. Sound of frequency below 20 Hz is called
- audio sounds
- infrasonic
- ultrasonic
- supersonics