Sawaal

 Physics Questions

Popular Latest Rated
Q:

Calculate the time period (in seconds) of a sound wave of wavelength 2m travelling with a speed of 250 m/s.

A) 500 B) 0.008
C) 0.016 D) 250
 
Answer & Explanation Answer: B) 0.008

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

2 2225
Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40 B) 4000
C) 80 D) 2000
 
Answer & Explanation Answer: A) 40

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

3 2216
Q:

On which principle does the hydraulic lift works?

A) Newton's law B) Pascal's law
C) Archimedes's law D) Joule's law
 
Answer & Explanation Answer: B) Pascal's law

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 2215
Q:

Rotameter is used to measure

A) Vortex flow B) Density of fluids
C) Velocity of fluid in pipes D) Flow of fluids
 
Answer & Explanation Answer: D) Flow of fluids

Explanation:

A rotameter is a flow meter that measures volumetric flow of liquids and gases.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 2211
Q:

The colour of a thin film is due to

A) Scattering B) Dispersion
C) Diffraction D) Interference
 
Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

6 2211
Q:

The motion of a freely falling body is an example of ________________________ motion.

A) uniformly accelerated B) non-uniformly accelerated
C) constant velocity D) constant speed
 
Answer & Explanation Answer: A) uniformly accelerated

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

4 2195
Q:

For every action, there is an equal and opposite reaction, is Newton's

A) First law B) Second law
C) Third law D) Fourth law
 
Answer & Explanation Answer: C) Third law

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: CAT , Bank Exams , AIEEE

2 2194
Q:

Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds.

A) 12500 B) 20
C) 40 D) 6250
 
Answer & Explanation Answer: A) 12500

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

3 2194