Thursday, February 27, 2020

WBCS Polity and Constitution MCQs Prelims and Mains

Physics mcq For UPSC | SSC | Rail | RRB | State PSC P22


Page 22

80080211. The mass of a star is two times the mass of the Sun. How it will come to an end?
A
Neutron Star
B
Blackhole
C
White Dwarf
D
Red Giant
A
Correct Answer: A. Neutron Star
80096212. Therm' is the unit of
A
power
B
heat
C
light
D
distance
B
Correct Answer: B. heat
80123213. Which color is the complementary color of yellow?
A
Blue
B
Green
C
Orange
D
Red
A
Correct Answer: A. Blue
80117214. When the main switch of the house is put off it disconnects the
A
live wire only
B
live wire and the earth wire
C
live wire and the neutral wire
D
earth wire and the neutral wire
C
Correct Answer: C. live wire and the neutral wire
80060215. Submerged objects can be located using
A
radar
B
sonar
C
quasar
D
pulsar
B
Correct Answer: B. sonar
80049216. Mist is caused by
A
dry ice
B
ice at low temperature
C
water vapor at low temperature
D
carbon-monoxide in solid form
C
Correct Answer: C. water vapor at low temperature
80004217. A boat will submerge when it displaces water equal to its own:
A
volume
B
weight
C
surface area
D
density
B
Correct Answer: B. weight
80149218. Why does bleeding occur through the nose in high mountainous regions?
A
The pressure of blood in capillaries is greater than the outside pressure.
B
The pressure at high altitudes is greater than that on the plains
C
The blood pressure of a person increases at high altitudes
D
The blood pressure fluctuates and finally decreases drastically
C
Correct Answer: C. The blood pressure of a person increases at high altitudes
80020219. Boyle's law is a relationship between
A
Pressure and volume
B
Volume and temperature
C
Volume and density
D
Pressure and temperature
A
Correct Answer: A. Pressure and volume
80001220. \'Cryogenics' is a science, dealing with
A
high temperatures
B
low temperatures
C
friction and wear
D
growth of crystals
B
Correct Answer: B. low temperatures



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