Physics (10×1=10)
1. The S.I. unit of Gravitational constant (G) is
a) Kg'm's
c) Kg'ms²
b) Kg 'm²s²
d) None of the above
2. Which of the following is Scalar quantity?
a) Force
b) Velocity
d) Temperature
c) Acceleration
3. The S.I. unit of electric current is
a) Volt
c) Ohm
b) Ampere
d) Coulomb
4. Newton's first law of motion is also known as
a) law of inertia
c) law of gravitation
b) law of acceleration
d) None of the above
5. The rate of change of Momentum is called
a) Power
c) Force
b) Energy
d) None of the above
6. The force of attraction between two bodies in the universe is called.
a) Magnetic Force
c) Gravitational Force
b) Electrostatic Force
d) Nuclear Force
7. The S.I. unit of frequency is
a) Watt
c) Joule
b) Newton
d) Hertz
8. The temperature of a body is 212° F. The temperature in Celsius scale is
a) 0°C
c) 100°C
b) 180°C
d) None of the above
9. The phenomenon of splitting of white light into seven colour is called
a) Reflection
b) Refraction
d) Diffraction
c) Dispersion
10. Which of the following material is good conductor of electricity?
a) Wood
b) Rubber
c) Copper
d) Plastic
Answer (2)
The correct answers to the questions are:
b) Kg 'm²s²
d) Temperature
b) Ampere
a) law of inertia
c) Force
c) Gravitational Force
d) Hertz
c) 100°C
c) Dispersion
c) Copper.
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The S.I. unit of Gravitational constant (G) is d) None of the above . The correct unit is N ⋅ m 2 / k g 2 .
Which of the following is a Scalar quantity? The correct answer is d) Temperature . Scalars have only magnitude and no direction.
The S.I. unit of electric current is b) Ampere . The ampere (A) is the standard unit for measuring electric current.
Newton's first law of motion is also known as a) the law of inertia . It states that an object will remain at rest or in uniform motion unless acted upon by a force.
The rate of change of Momentum is called c) Force . According to Newton's second law, force is the rate of change of momentum.
The force of attraction between two bodies in the universe is called c) Gravitational Force . This force is described by Newton's law of universal gravitation.
The S.I. unit of frequency is d) Hertz . Hertz (Hz) is used to measure the number of cycles per second of a periodic phenomenon.
The temperature of a body is 212°F. The temperature in Celsius scale is c) 100°C . You convert Fahrenheit to Celsius using the formula: C = 9 5 ( F − 32 ) .
The phenomenon of splitting of white light into seven colors is called c) Dispersion . This occurs when white light passes through a prism and is separated into its component colors.
Which of the following material is a good conductor of electricity? The correct answer is c) Copper . Copper is widely used in electrical wiring due to its excellent conductivity.
