Question

1. A body vibrates 40 times in 4 seconds. Find its time period and frequency.

Answer 1

Explanation:

hhhhMatch the statements 1 to 5 with their answers from A to E. A: Anode B: Ammonia C: Mg2+ D: Sucrose solution E: Electro metallurgy.

i. A compound which ionizes in solution state but not in gaseous state.

ii. A compound containing molecules only.

iii. The ion which accepts electrons from the cathode and gets reduced to neutral atom.

iv. An application of electrolysis in which anode does not generally diminish in size.

v. The electrode to which the cyanide ions of aq Na[Ag(CN)2] migrate during electrolysis.

Answer 2

Answer:

Time period = Number of oscillations in time t

t = 4÷40

=0.1 s

Frequency = 1÷ Time period

= 1÷0.1

=10 Hz

Explanation:

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