Physics Questions

Q:

Kinetic energy is equal to

A) 1/2 mv2 B) mgh
C) mv D) Ma
 
Answer & Explanation Answer: A) 1/2 mv2

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1142
Q:

Two identical resistors of 20 ohm each are connected in parallel. This combination, in turn, is connected to a 10 ohm resister. The equivalent resistance of the combination will be

A) 30 ohm B) 10 ohm
C) 5 ohm D) 20 ohm
 
Answer & Explanation Answer: A) 30 ohm

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams

0 1142
Q:

If a body is whirled in a circle, then the work done on it ___.

A) is zero B) is positive
C) cannot be determined D) is negative
 
Answer & Explanation Answer: A) is zero

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1139
Q:

The acceleration due to gravity at the surface of the earth (mass M and radius R) is proportional to ___.

A) MR B) M/R2
C) M2/R D) M/R
 
Answer & Explanation Answer: B) M/R2

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

2 1136
Q:

Find the resistance (in mega Ω) of a wire of length 10 m, cross sectional area 1 cm2 and made of a material of resistivity 100 Ωm.

 

A) 1000   B) 20  
C)  500   D) 10
 
Answer & Explanation Answer: D) 10

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1130
Q:

What does the symbol R in electricity stand for ?

A) Resistance B) Resonance
C) Refraction D) Rarefaction
 
Answer & Explanation Answer: A) Resistance

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams

0 1130
Q:

What is not true with CT Scan?

A) Combines many X-ray images B) Scanning is often painful
C) Generates 3-D cross-sectional views D) Identifies normal and abnormal structures
 
Answer & Explanation Answer: B) Scanning is often painful

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

2 1127
Q:

Which of the following devices helps to maintain a potential difference across a conductor?

A) Galvanometer B) Ammeter
C) Voltmeter D) A cell or battery
 
Answer & Explanation Answer: D) A cell or battery

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

2 1126