Question

Mobile phones use chargeable batteries. Which energy transfer corresponds to display of telephone numbers on the mobile?
a) Chemical‐electrical‐sound. b) Electrical‐chemical. c) Chemical‐electrical‐light. d) Light‐electrical‐sound

Answer 1

C no. option is ur answer

Answer 2

Answer:

Chemical - electrical- light energy transfer corresponds to display of telephone numbers on the mobile.

Option C

Explanation:

Mobile has a battery which contains lithium-ion. Lithium-ion gets forms electrolysis to give chemical energy. This chemical energy gets transformed into electrical energy which runs the device. As a result of the battery of mobile losses, it’s a charge.

The electrical energy gets converted into light energy. This light energy reaches our eyes and we can see the display of phone numbers typed. However, there is a loss of some energy in terms of heat.