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# MCQs on Physics for Online Preparation of Entry Test and Job Tests

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## MCQs on Physics for NTS, PPSC, CSS, FPSC, PMS, OTS, PTS and Job Interviews

This post has MCQs on Physics for NTS, PPSC, CSS, FPSC, PMS, OTS, PTS and Job Interviews. These Entry Test MCQs of Physics belongs to Physics Quiz series and this is the sixth post. Students who are willing for different entry tests and people willing to appear in competitive exams can get benefit from this post. MCQs are taken from Caravan Comprehensive Book. For more Physics Quizzes Click Here.

## Entry Test MCQs of Physics Online Preparation of Test and Job Tests

Counting is starting from 101. For previous MCQs on Physics Go Here.

101. Through which of the following media does sound travel the fastest?

(a) Coolair
(b) Warm air
(c) Coldwater
(d) Steel

(d) Steel

102. Which of the following instruments is used for detecting and measuring small electric currents?

(a) Ammeter
(b) Fluxmeter
(c) Galvanometer
(d) Voltmeter

(c) Galvanometer

103. The lightning conductor or rod used for protecting buildings from lightning is made of _________.

(a) Aluminium
(b) Copper
(c) Iron
(d) All of the above

(b) Copper

104. What is the melting point of Tungsten?

(a) 500°C
(b) 1,000°C
(c) 2,000°C
(d) 3,000°C

(d) 3,000°C

105. Colours seen on oil films spread on water are seen because of __________.

(a) Interference of light waves
(b) Refraction of light
(c) Reflection of light
(d) None of the above

(a) Interference of light waves

106. A motorcar is moving with uniform velocity on a rough horizontal road. According to Newton’s law of motion _______.

(a) The kinetic energy of the car is increasing
(b) There is no unbalanced force acting on the car
(c) Forces are acting on the car
(d) The car is being accelerated

(b) There is no unbalanced force acting on the car

107. If a bimetallic strip is heated, it will _________.

(a) Twist itself into a helix
(b) Not bend at all
(c) Bend towards the metal with the higher thermal coefficient of expansion
(d) Bend towards the metal with the lower thermal expansion coefficient

(d) Bend towards the metal with the lower thermal expansion coefficient

108. In an electronic watch. the component corresponding to the pendulum of a pendulum clock is:

(a) Transistor
(b) Balance wheel
(c) Crystal oscillator
(d) Diode

(c) Crystal oscillator

109. Why is the light an of ordinary lamp hotter than the tube light?

(a) It is due to incandescence
(b) It is due the to ionisation of gases
(c) It has more surface for distribution of energy
(d) It gives white light

(a) It is due to incandescence

110. The resistance of a bulb rated 60 watts/220 volts is approximately______.

(a) 4 Ω
(b) 40 Ω
(c) 400 Ω
(d) 800 Ω

(d) 800 Ω

111. Sonar works on the principle of ______.

(a) Reflection of sound
(b) Absorption of sound
(d) None of these

(a) Reflection of sound

112. When the load is lifted from the ground to a certain height, some work is done and energy is used up. This energy is converted into______.

(a) Internal energy of the body
(b) Heat and dissipated
(c) Potential energy of the body
(d) Heat as well as potential energy

(c) Potential energy of the body

113. A plant with green leaves placed in red light will appear______.

(a) Black
(b) Green
(c) Red
(d) Violet

(a) Black

114. The common refrigerant used in the domestic refrigerator is ______.

(a) Neon
(b) Freon/ammonia
(c) Spirit
(d) None of these

(b) Freon/ammonia

115. Who said, “A body will remain at rest unless an external force acts on the body”?

(a) Newton
(b) Einstein
(c) Archimedes
(d) Galileo

(a) Newton

116. Which metal is commonly used as an electromagnet?

(a) Copper
(b) Iron
(c) Nickel
(d) Cobalt

(b) Iron

117. Which of the following does not admit any division?

(a) Atom
(b) Molecules
(c) Compound
(d) All

(a) Atom

118. The dynamo converts______.

(a) Mechanical energy into electrical energy
(b) Electrical energy into mechanical energy
(c) Mechanical energy into magnetic energy
(d) None of these

(a) Mechanical energy into electrical energy

119. A red light is used in a traffic signal because______.

(a) It has the longest wavelength and can be easily noticed from a long distance
(b) It is beautiful
(c) It is visible to people even with bad eyesight
(d) None of these

(a) It has the longest wavelength and can be easily noticed from a long distance

120. Metals are good conductors of electricity because_______.

(a) They contain free electrons
(b) The atoms are lightly packed
(c) They have the high melting point
(d) All of the above

(a) They contain free electrons

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