Question

The given diagram exhibits the relationship between the wavelength of the electromagnetic waves and the energy of photon associated with them. The three points P, Q and R marked on the diagram may correspond respectively to:

Options

• X-rays, microwaves, UV radiation

• X-rays, UV radiation, microwaves

• UV radiation, microwaves, X-rays

• Microwaves, UV radiation, X-rays

Answer 1

X-rays, UV radiation, microwaves

Explanation:

E = `(hc)/lambda`

Energy and wavelength are inversely proportional.

Wavelength of microwave > Wavelength of UV > Wavelength of X-rays

Hence,

P = X-rays

Q = UV radiation

R = Microwave