Sawaal

 Physics Questions

Popular Latest Rated
Q:

Transformer is a device to convert

A) D.C. to A.C. B) Low voltage D.C. into high voltage D.C.
C) Low voltage A.C. into high voltage A.C. D) Mechanical energy into Electrical energy
 
Answer & Explanation Answer: A) D.C. to A.C.

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1917
Q:

Electrical Arcing occurs when

Answer

An electric arc is a visible plasma discharge between two electrodes that is caused by electrical current ionizing gasses in the air. Electric arcs occur in nature in the form of lightning.

Report Error

View answer Workspace Report Error Discuss

Subject: Physics Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

0 1916
Q:

Instrument for measuring wind velocity is called

A) Coulombmeter B) Anemometer
C) Cyanometer D) Chronometer
 
Answer & Explanation Answer: B) Anemometer

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1915
Q:

An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's

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

Explanation:
Report Error

View Answer Report Error Discuss

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

1 1912
Q:

What is the other name of Galileo's law of falling bodies?

A) Law of motion B) Newton's first law
C) Newton's second law D) Newton's third law
 
Answer & Explanation Answer: B) Newton's first law

Explanation:
Report Error

View Answer Report Error Discuss

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

1 1912
Q:

The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?

A) 8.5 A B) 24 A
C) 10 A D) 12 A
 
Answer & Explanation Answer: A) 8.5 A

Explanation:
Report Error

View Answer Report Error Discuss

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

1 1910
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 1910
Q:

Which of the following is not true about X­rays?

A) have low penetrating power B) travel with the speed of light
C) Can be reflected or refracted D) can affect photographic plates
 
Answer & Explanation Answer: A) have low penetrating power

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1909