999+ Physics Questions Answers Explanation MCQ

Q:

The path of a projectile is called its ______.

A) Altitude	B) Range
C) Trajectory	D) Flight

Answer & Explanation Answer: C) Trajectory

Explanation:

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Q:

Rate of change of momentum is

A) Area	B) Pressure
C) Force	D) Velocity

Answer & Explanation Answer: C) Force

Explanation:

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Q:

An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is

A) 20 J	B) 25 J
C) 10 J	D) 40 J

Answer & Explanation Answer: A) 20 J

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Q:

For which of the following game, players must have the knowledge of Pascal's law?

A) Climbing	B) Paragliding
C) Rafting	D) Scuba diving

Answer & Explanation Answer: D) Scuba diving

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Q:

Liquids and gases never show

A) diamagnetic property	B) paramagnetic property
C) ferromagnetic property	D) electromagnetic property

Answer & Explanation Answer: C) ferromagnetic property

Explanation:

On the basis of magnetic properties, substances are classified into three groups namely diamagnetic, paramagnetic and ferromagnetic.

As solids diffuse and reorder very slowly under ambient conditions, the net, directionally dependent (anisotropic) magnetic moment can persist. Conversely, liquids and gases freely tumble and reorder: water rearranges every few pico seconds (10^12 times per second).

Hence liquids and gases can never show ferromagnetic properties.

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Q:

Instrument for measuring rainfall is called

A) Lucimeter	B) Galactometer
C) Hyetometer	D) Hygrometer

Answer & Explanation Answer: C) Hyetometer

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Q:

_____________________ states that the total current entering a junction is equal to the total current leaving the junction.

A) Lenz's Law	B) Hooke's Law
C) Ohm's Law	D) Kirchhoff's First Law

Answer & Explanation Answer: D) Kirchhoff's First Law

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Q:

The reflector of a search light is a :

A) Convex mirror	B) Concave mirror
C) Plane mirror	D) Cylindrical mirror

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