Physics - MOST IMPORTANT RRB Ministerial & Isolated Categories Previous Year Questions

21.9 x 10⁴ N

4800 N

3461 N

384 N

(ii) and (iii) only

(i), (iii) and (iv) only

(i), (ii), (iii) and (iv)

(i), (ii) and (iii) only

medium; vacuum

medium; air

vacuum; medium

air; medium

(i) and (iii) only

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (ii) only

15 seconds

20 seconds

25 seconds

18 seconds

Same size, real, and inverted on the principal axis

Point-sized, virtual, and erect

Large, real, and inverted at the centre of the curvature

Magnified, virtual, and upright in front of the mirror

It is used to determine the mass of the Sun.

It is used to study the lifetime of planets.

It helps in discovering new stars and planets.

It is used to study the motion of the Moon around the earth.

A is false, but R is true.

Both A and R are true, but R is not the correct explanation of A.

A is true, but R is false.

Both A and R are true, and R is the correct explanation of A.

Direction of force on the conductor

Direction of the electric charge

Direction of magnetic north

Direction of electric field on the conductor

The pitch stays the same regardless of the vibration speed.

The frequency and pitch both decrease.

The frequency increases, but pitch decreases.

The frequency and pitch both increase.

Concave lens

Convex lens

Cylindrical lens

Plano - Convex lens

myopia; concave

hypermetropia; concave

myopia; convex

hypermetropia; convex

Weight and mass are not related.

Weight is directly proportional to mass.

Weight is inversely proportional to mass.

Mass changes, but weight stays the same.

(i) and (ii) only

(i) and (iii) only

(i), (ii) and (iii)

(ii) and (iii) only

Red

Green

Blue

Violet

It equals the product of all individual resistances.

It becomes equal to the smallest resistance among them.

It equals the sum of all individual resistances.

It becomes less than the smallest resistance.

To help them bounce higher after landing

To decrease the time taken to stop, increasing the rate of change of momentum

To reduce the time taken to land

To increase the time taken to stop, reducing the rate of change of momentum

Optical length

Focal length

Principal axis

Radius of curvature

Both statements are true.

Statement I is true, but Statement II is false.

Statement I is false, but Statement II is true.

Both statements are false.

Liquids have fixed volume but no fixed shape.

Liquids have no fixed volume.

Liquids have fixed shape but no fixed volume.

Liquids have neither fixed volume nor shape.