Question

solve the following questions​

Answer 1

Answer:

50 Hz

Frequency of Alternating current in India is 50 Hz.

2. dew point relative humidity is 100%. ... Relative humidity has no unit. The escape velocity of a body does not depend on the mass of the body. If the power of a lens is 2 D, its focal length =0.5m.

sorry

I don't know c question

Answer 2

Answer:

B) 1. True.

2. False.

C) 1. Dobereiner. .c) Triads.

2. Newlands. .d) Octaves.

3. Moseley. .a) Atomic Number.

Hope it is helpful for you....

Good night dear. .TC.