Explanation

Explanation

By mole fraction (i.e., by variety of molecules), dry air contains seventy eight.08% element, 20.95% oxygen, 0.93% argon, 0.04% greenhouse emission, and tiny amounts of alternative gases

Explanation

A number is a perfect square (or a square number) if its square root is an integer;

that is to say, it is the product of an integer with itself.

Here, the square root of 513 is about 22.650.

Explanation

Infrared radiation is strongly absorbed by water and by the atmosphere.

Although invisible to the eye, infrared radiation can be detected as warmth by the skin.

Nearly 50 percent of the Sun's radiant energy is emitted in the infrared region of the electromagnetic spectrum, with the rest primarily in the visible region.

Explanation

The Office of Wafaqi Mohtasib was established on 24 January 1983 under President's Order No. 1 of 1983.

It was formed by President Zia-ul-Haq to address public complaints against government maladministration.

Explanation

Youm-e-Takbeer is celebrated on May 28

It is celebrated  in commemoration of the Chagai-I and Chagai-II series of nuclear tests

This day made Pakistan the seventh nuclear state of the world

Explanation

Pakistan was announced to host the Asia Cup 2020 by the ACC.

But the event was postponed and eventually canceled due to the COVID-19 pandemic.

Explanation

****

Explanation

A dipole in an electric field behaves in two ways:

• In a uniform electric field:

The two equal and opposite forces cancel each other out.

So, the net force on the dipole is zero.

But a torque is produced that tends to align the dipole moment parallel to the electric field.

• In a non-uniform electric field:

The dipole does experience a net force, and that force is generally not simply parallel to the field.

So the correct answer remains:

(D) None of these — because in a uniform electric field, the net force on a dipole is zero.

Option (C) would be correct only if we were talking about torque direction or net force in a non-uniform field.

Explanation

Prime Factorization

1050 = 2 × 3 × 5 × 5 × 7

750 = 2 x 3 x 5 x 5 x 5

Common Factor = 2 x 3 x 5 x 5 = 150

Greatest Common Factor (GCF) = 150