Physics Questions

Q:

Gear finishing operation is called

A) Burnishing B) Hobbing
C) Shaping D) Milling
 
Answer & Explanation Answer: A) Burnishing

Explanation:

Gear finishing operation is called Burnishing.

Report Error

View Answer Report Error Discuss

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

1 3445
Q:

A boy is swinging a ball attached to a string in a horizontal circle.If the string snaps

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks D) none of these
 
Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having  been removed the body cannot execute the curved path. (B) is Correct.

Report Error

View Answer Report Error Discuss

Filed Under: Physics

4 3441
Q:

A Step-Up Transformer Increases

A) Power B) Current
C) Frequency D) Voltage
 
Answer & Explanation Answer: D) Voltage

Explanation:

A transformer that increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called a Step-Up Transformer.

Conversely, a transformer designed to do just the opposite is called a Step-Down Transformer. 

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank PO , Database Administration , IT Trainer

5 3435
Q:

The p wave of a normal Electrocardiogram indicates

A) atrial depolarization B) Ventricular repolarization
C) atrial repolarization D) Ventricular depolarization
 
Answer & Explanation Answer: A) atrial depolarization

Explanation:

The P wave in the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole.

The P wave is a summation wave generated by the depolarization front as it transits the atria.

Report Error

View Answer Report Error Discuss

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

1 3427
Q:

When a bullet is fired from a gun 

A) the gun moves forward B) the gun jumps up
C) the gun does not move D) the gun recoils with the same momentum as the bullet
 
Answer & Explanation Answer: D) the gun recoils with the same momentum as the bullet

Explanation:

Newton's III law involved

Report Error

View Answer Report Error Discuss

Filed Under: Physics

2 3419
Q:

The wavelength of a wave is the distance between

A) Crest and Trough B) Crest and Crest
C) Trough and Trough D) Both B & C
 
Answer & Explanation Answer: D) Both B & C

Explanation:

Distance between two Consecutive Crests or two Consecutive Troughs is called Wavelength. But the distance between crest and adjacent trough is half the wavelength.

That is the distance between adjacent crest and trough is called Half the wavelength.

Report Error

View Answer Report Error Discuss

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

11 3411
Q:

What is another name for energy of motion?

A) Motional energy B) Potential energy
C) Kinetic energy D) Rotational energy
 
Answer & Explanation Answer: C) Kinetic energy

Explanation:

Every object has two typea of energies. They are ::

Potential energy

Kinetic energy

 

If the object is in motion, then it has Kinetic energy (KE). Potential energy (PE) is energy that is "stored" because of the position and/or arrangement of the object.

 

Hence, another name for energy of motion is called Kinetic energy.

Report Error

View Answer Report Error Discuss

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

0 3382
Q:

Ampere second could be the unit of

A) Power B) Energy
C) Conductance D) Charge
 
Answer & Explanation Answer: C) Conductance

Explanation:
Report Error

View Answer Report Error Discuss

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

4 3376