Question # 1

The power of small fan is:

Choose an answer

40 W

50 W

60 W

80 W

The A.C used in Pakistan has frequency:

Choose an answer

60 Hz

30 Hz

50 Hz

130 Hz

The number of neutrons in the nucleus of tritium is:

Choose an answer

1

2

3

4

Circuit breaker works on the principle of:

Choose an answer

Electric current

Magnetism

Electromagnetism

Electrostatics

The process of breaking a heavy nucleus after the bombardment of neutrons into two small nuclei is called:

Choose an answer

Nuclear fission reaction

Nuclear fusion reaction

Nuclear Radiation

Nuclear chain reaction

The phenomenon in which radiations convert the matter into positive and negative ions is called:

Choose an answer

Radio activity

Excitation

Ionization

Electrolysis

Which instrument is used to detect current:

Choose an answer

Galvanometer

Voltmeter

Ammeter

Electroscope

The half life of radium 226 is

Choose an answer

1600 year

1610 years

1620 years

1630 years

For observing how fast plants are absorbing phosphate fertilizer we use.

Choose an answer

I.131

Ph -32

Co-60

Ar-40

Radiations present in atmosphere due to the presence of different radioactive elements are:

Choose an answer

Cosmic radiations

Background radiations

secondary radiations

Electromagnetic radiations

What is the amount of current passing through an electric heater, if it takes 1800C charge pass through it in 3 minute:

Choose an answer

16 A

10 A

100 A

0.1 A

the range of galvanometer to measure current is:

Choose an answer

few amperes

few micro amperes

few milli amperes

mega amperes

Who discovered the phenomenon of natural radioactivity?

Choose an answer

Henry Becurial

Merry Curi

Perry

Rutherford

More Classes

Other Links

Physics 10th Class English Medium Unit 9 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer