Sawaal

 Physics Questions

Popular Latest Rated
Q:

Light travels fastest in

A) Nitrogen B) Air
C) Steel D) Vacuum
 
Answer & Explanation Answer: D) Vacuum

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1367
Q:

In which of the following situations is mechanical energy most likely to be conserved?

A) A feather falls from the sky. B) A football flies through the air.
C) A hockey player digs his skates into the ice. D) A skateboard rolls into the grass.
 
Answer & Explanation Answer: B) A football flies through the air.

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: CAT , Bank Exams

1 1367
Q:

In an optical fibre the signal is transmitted

A) in a straight line path B) In a curved path
C) due to total internal reflection D) Due to refraction
 
Answer & Explanation Answer: D) Due to refraction

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics

2 1366
Q:

Through which does light travel best?

A) water B) air
C) vacuum D) none
 
Answer & Explanation Answer: C) vacuum

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1365
Q:

Which  one  of  the following  is  the  value  of one nanometer?

A) 10-7 cm B) 10-6 cm
C) 10-4  cm D) 10-3  cm
 
Answer & Explanation Answer: A) 10-7 cm

Explanation:

1 nanometer (nm) of length

Equals: 0.00000010 centimetres (cm) in length.

This is equal to 10^-7 cm.

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1364
Q:

Friction is caused by the ______________ on the two surfaces in contact.

A) irregularities B) smoothness
C) densities D) gaps
 
Answer & Explanation Answer: A) irregularities

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

2 1364
Q:

Calculate the pressure (in Pa) if a thrust of 800 N is applied to an area of 16 m2.

A) 128 B) 100
C) 64 D) 50
 
Answer & Explanation Answer: D) 50

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1363
Q:

Which one of the following is not a property of electromagnetic waves?

A) Electromagnetic waves do not show interference and diffraction. B) Oscillating electric field and magnetic field are perpendicular to each other.
C) Electromagnetic waves are transverse waves D) Electromagnetic waves do not require a medium to propagate.
 
Answer & Explanation Answer: A) Electromagnetic waves do not show interference and diffraction.

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1362