RRB-GROUP D Physics question & answer - 2
Here we can learn RRB-GROUP D questions and answers for Railway Recruitment Board (RRB) exams, physics questions and answers (set 2), this will also help you to score more marks in all competitive exams and entrance exams like UPSC, SSC, IBPS, SBI, NEET,... the questions from the ncert books. It is the best place to learn exam preparation study materials for all exams. Previous year's asked Physics questions and answers and also play Physics Quiz. This Quiz makes you more interesting. A list of RRB Physics questions and answers is given below.
List of RRB-GROUP D Physics MCQs
A list of RRB Physics questions and answers is given below.
1. A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be (a) 12 feet (b) 3 feet (c) 6 feet (d) any length Ans-b 2. A signal emitted by an antenna from a certain point can be received at another point of the surface in the form of (a) sky wave (b) ground wave (c) sea wave (d) both (a) and (b) Ans-d 3. Tangent galvanometer is used to measure (a) potential difference (b) current (c) resistance (d) charge Ans-b 4. Interference is possible in (a) light waves only (b) sound waves only (c) both light and sound waves (d) neither light nor sound waves Ans-c 5. An astronomical refracting telescope will have large angular magnification and high angular resolution, when it has an objective lens of (a) small focal length and large diameter (b) large focal length and small diameter (c) large focal length and large diameter (d) small focal length and small diameter Ans-c 6. Solar energy is due to (a) fusion reaction (b) fission reaction (c) combustion reaction (d) chemical reaction Ans-a 7. Boyle’s law is a relationship between (a) pressure and volume (b) volume and temperature (c) volume and density (d) pressure and temperature Ans-a 8. Barrier potential of a p-n junction diode does not depend on (a) diode design (b) temperature (c) forward bias (d) doping density Ans-a 9. If we consider electrons and photons of same wavelength, then they will have same (a) momentum (b) angular momentum (c) energy (d) velocity Ans-a 10. Which of the following is not due to total internal reflection? (a) Working of optical fibre (b) Difference between apparent and real depth of a pond (c) Mirage on hot summer days (d) Brilliance of diamond Ans-b 11. In a p-n junction (a) high potential at n side and low potential at p side (b) high potential at p side and low potential at n side (c) p and n both are at same potential (d) undetermined Ans-a 12. Knot is a measure of (a) the speed of ship (b) the curvature of spherical objects (c) solar radiation (d) intensity of earthquake shock Ans-a 13. Clear nights are colder than cloudy nights because of (a) conduction (b) condensation (c) radiation (d) insolation Ans-c 14. A water tank appears shallower when it is viewed from top due to (a) rectilinear propagation of light (b) reflection (c) total internal reflection (d) refraction Ans-d 15. Intensity of gravitational field of earth is maximum at (a) poles (b) equator (c) centre of earth (d) surface Ans-a 16. Why do birds not have respiratory trouble at the time of flying at high altitude? (a) Their lungs are very large (b) They fly inactively (c) They have extra air sacs (d) They use less oxygen Ans-c 17. Plants are dried up in winter due to frost because (a) evaporation does not take place (b) photosynthesis does not take place at such low temperature (c) respiration does not take place at low temperature (d) there is mechanical loss of tissues and drought condition prevails Ans-d 18. For a body moving with non-uniform velocity and uniform acceleration (a) Displacement-Time graph is linear (b) Displacement-Time graph is non-linear (c) Velocity-Time graph is non-linear (d) Velocity-Time graph is linear Ans-b 19. An egg sinks in soft water but floats in a concentrated solution of salt because (a) egg absorbs salt from the solution and expands (b) albumin dissolves in salt solution and egg becomes lighter (c) the density of salt solution, exceeds the density of eggs (d) water has high surface tension Ans-c 20. Ball pen functions on the principle of (a) Viscosity (b) Boyle’s Law (c) Gravitational force (d) Surface tension Ans-d
Play Quiz
Play RRB Group-D Physics Quiz and gain knowledge. This Quiz makes you more interesting.
