Question

The charge and mass of the charged particles constituting the cathode rays, respectively is


–1.6 × 10–19 C and 9.1 × 10–28 g


+1.6 × 10–19 C and 9.1 × 10–31 kg


+1.6 × 10–19 C and 1.6 × 10–24 g


–1.6 × 10–18 C and 9.1 × 10–31 kg

Answer 1

Answer:

a option is the correct one

Answer 2

Cathode rays carry a negative charge. The answer is option A.

Explanation

The cathode rays are made up of material particles. It carries a negative charge.

The negatively charged material particles constituting the cathode rays are called electrons. Further experiments were carried out to determine the exact charge and mass of the electrons. The charge and mass was found to be:-

• The charge of the electron =  $1.6 \times 10^{-19} C$.
• The mass of electron=  $9.11 \times 10^{-28} g$.

So, the answer is option a.