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Physics

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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.

A constructive interference

B destructive interference

C beats

D resonance

A the sum of the frequencies of two tuning forks

B the difference of the frequencies of two tuning forks

C the ratio of the frequencies of two tuning forks

D the frequency of either of the two tuning forks

A frequency in the audible range

B frequency is greater than 20 kHz

C frequency lower than 20 Hz

D all of above

A 313°C

B 586°C

C 819°C

D 1172°C

A Water

B air

C copper

D ammonia

A 332 ms-1

B 320 ms-1

C Zero

D 224 ms-1

A adiabatic

B isothermal

C isobaric

D isochoric

A always an node in formed

B always an antinode is formed

C neither node nor antinode is formed

D sometimes a node and sometimes an antinode is formed

A antinodes

B nodes

C troughs

D crests

A frequency

B period

C Wave length

D phase difference

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Silence zone takes place due to____________________?

The number of beats produced per second is equal to____________________?

Ultrasonic have__________________?

The velocity of sound in air would become double than its velocity at 0°C at temperature ?

The velocity of sound is greatest in___________________?

Velocity of sound in vacuum is ____________________?

According to Newton sound travel in air under the conditions of_____________________?

A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?

In vibrating cord the points where the amplitude is maximum, are called ___________________?

The distance between any two consecutive crests or troughs is called____________________?