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Physics 914 MCQs [All-Courses]

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Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas. 

All Topics  914

Michelson calculated the speed of light using the instruments______________?

A spectrometer
B galvanometer
C interferometer
D none of these
Correct Answer: spectrometer

Radioactive materials can be identified by measuring their_______________?

A Hardness
B Density
C Mass
D Half life
Correct Answer: Half life

The equation θ = 1.22 λ/D was devised by_______________?

A Newton
B Einstein
C Raleigh
D Planks
Correct Answer: Raleigh

Ina liquid metal fast breeder reactor, the type of uranium used is______________?

A 92U235
B 92U238
C 92U234
D 92U239
Correct Answer: 92U238

A convex lens acts as a diverging lens if the_________________?

A object is beyond C
B if the object is with in C
C if the object is within f
D both B and C
Correct Answer: both B and C

During the fission process a large amount of______________?

A Heat energy is released
B Nuclear energy is released
C Chemical energy is released
D Light energy is released
Correct Answer: Nuclear energy is released

Michelson devised the formula to calculate the speed of light_______________?

A C = 4fd
B C = 8fd
C C = 16fd
D C = 5/2fd
Correct Answer: C = 16fd

The unit of radioactivity curie is equal to________________?

A 3.74 x 109 disintegration per sec
B 3.70 x 1010 disintegration per sec
C 3.55 x 1010 disintegration per sec
D 3.60 x 1010 disintegration per sec
Correct Answer: 3.70 x 1010 disintegration per sec

In optic fiber transmission the repeater are separated through a distance of __________ km in newer system?

A 300km
B 200km
C 100km
D 20km
Correct Answer: 100km

The unit of radioactivity curie is equal to_________________?

A 3.74 x 109 disintegration per sec
B 3.70 x 1010 disintegration per sec
C 3.55 x 1010 disintegration per sec
D 3.60 x 1010 disintegration per sec
Correct Answer: 3.70 x 1010 disintegration per sec
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