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In this website each webpage contains minimum 10 mcqs and maximum upto 30 mcqs (objective type questions), one liner questions etc.
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Physics MCQs | Objective Type Questions SET-32
Q1. The filament of electric bulb is made up of:
(a) Copper
(b) Nichrome
(c) Lead
(d) Tungsten
Ans. : (d) Tungsten
Q2. When a vibrating tuning fork is placed on a table a loud sound is heard. This is due to :
(a) reflection
(b) refraction
(c) forced vibrations
(d) damped vibrations
Ans. : (c) forced vibrations
Q3. Light houses are places with powerful lights to
(a) guide and resolve traffic jams in crowded metro cities during nights.
(b) guide and help large crowds at religious gathering during nights.
(c) indicate to the incoming war ships the location of a harbor during night.
(d) guide and warn the ships corning from different directions in the ocean.
Ans. : (d) guide and warn the ships corning from different directions in the ocean.
Q4. A piece of wood is held under water. The up thrust on it will be:
(a) equal to the weight of the wood
(b) less than weight of the wood
(c) more than weight of the wood
(d) Zero
Ans. : (b) less than weight of the wood
Q5. Persistence of vision is the principle behind
(a) Camera
(b) Spectroscope
(c) Cinema
(d) Periscope
Ans. : (c) Cinema
Q6. In a nuclear reactor one of the following is used as a fuel
(a) Coal
(b) Uranium
(c) Radium
(d) Diesel
Ans. : (b) Uranium
Q7. The density of the liquid when heated
(a) decreases
(b) increases
(c) does not change
(d) may increase or decrease depending on pressure
Ans. : (a) decreases
Q8. The distance between node and adjacent antinodes is 30 cm. The wavelength is
(a) 30 cm.
(b) 90 cm.
(c) 120 cm.
(d) 60 cm.
Ans. : (d) 60 cm.
Q9. The nature of fuse wire is
(a) high resistance and low melting point.
(b) high resistance and high melting point.
(c) low resistance and high melting point.
(d) low resistance and low melting point
Ans. : (a) high resistance and low melting point.
Q10. In a railway track two rails rejoined end to end with a gap in between them because
(a) steel can be saved
(b) accidents due to contraction in winter can be avoided
(c) air gaps are necessary for bearing the weight of running train
(d) accidents due to expansible in summer can be avoided.
Ans. : (d) accidents due to expansible in summer can be avoided.
