Explanation

The decrease in the terminal voltage of a shunt generator is due to armature resistance.

The voltage drop across the armature resistance reduces the terminal voltage as the load current increases.

Explanation

The axis of the earth is an imaginary line passing through the North and South poles of the earth.

It serves as the central reference line around which the earth rotates, defining its rotational axis.

Explanation

Compression is a region in longitudinal waves that occurs in high pressure and rarefaction is also a region in longitudinal waves

That occurs where there is extra space or where particles are far away from each other

Both waves are longitudinal waves of sound waves

Explanation

In semiconductors, as the temperature increases, more electrons gain enough energy to jump from the valence band to the conduction band.

This increase in free charge carriers results in higher electrical conductivity.

This is opposite to metals, where conductivity decreases with temperature due to increased scattering of electrons.

Explanation

Explanation

Explanation

The energy (E) of a photon is given by:

E = hc/λ

where h is Planck's constant (6.63 x 10⁻³⁴ J s), c is the speed of light (3 x 10⁸ m/s), and λ is the wavelength.

E = (6.63 x 10⁻³⁴) * (3 x 10⁸) / (3 x 10⁻¹⁰) = 6.63 x 10⁻¹⁶ J

Explanation

The moon doesn't produce its own light; we see it because it reflects sunlight.

The light that reaches the moon from the sun bounces back to Earth.

This making the moon visible to us.

Explanation

Genes mutation is NOT a somatic biological effect of radiation; it is a genetic effect.

Somatic effects, like skin burns, loss of hair, and cancer induction, affect the exposed individual's body, whereas genetic effects impact future generations.

Explanation

The speed of sound in vacuum is 0 m/s because sound cannot propagate in a vacuum as there is no medium for the sound waves to travel through.