(i) Light will bend towards the normal in the glass slab. (ii) Emergent ray will be parallel to the refracted ray. (iii) Speed of light will be more in glass slab as compared to medium A. (iv) Angle of refraction ...

The oxygen rich blood from the lungs comes to the Left Atrium when it dilates. The right Atrium receives the deoxygenated blood from the body.

Mg (s) + H₂SO₄ (aq) → MgSO₄ (aq) + H₂ ↑ is the balanced chemical reaction. A balanced equation is the one in which the atoms of every element will be the same on both the sides of the equation.

After replacement, bulb glows in B as NaOH solution contains Na⁺ and OH⁻ ions, which are responsible for electrical conductivity.

(i)Rainbow is caused by scattering of sunlight by tiny water droplets, present in the atmosphere. (ii) A rainbow is always formed in a direction opposite to that of the Sun. (iii) The water droplets refract and scatter the incident sunlight, ...