Question

Which of the following statements concerning light are true?

• A. It is a form of energy
• B. It can be deflected by a magnet
• C. It consists of photons of same energy
• D. It is part of electromagnetic spectrum

Answer 1

Answer: (A), (C), (D)

The correct options are
A It is a form of energy
C It consists of photons of same energy
D It is part of electromagnetic spectrum

The statements A, C, and D are correct.

Light is the form of energy. The energy of light of wavelength $\lambda$ and frequency $\nu$ is given by the expression $E=h\nu =\frac{hc}{\lambda }$

Light is electromagnetic radiation and cannot be deflected by electric field or by magnetic field.

Light consists of photons of same energy. Visible light is a part of electromagnetic spectrum. It is present between high energy UV region and low energy IR region.