Physics Questions

Q:

Which of the following pair is INCORRECT?
I. Parsec - Distance
II. Barrel - Liquid
III. Light year - Time

A) Only III B) Only I and III
C) Only II D) All are correct
 
Answer & Explanation Answer: A) Only III

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

3 1719
Q:

Analog synthesis refers to a technology based on

A) placing brief digital recordings of live sounds under the control of a synthesizer keyboard. B) interfacing synthesizer equipment.
C) representing data in terms of measurable physical quantities. D) representing physical quantities as numbers.
 
Answer & Explanation Answer: C) representing data in terms of measurable physical quantities.

Explanation:

Analog synthesis uses a mixture of complex sounds that are shaped by filtering. It is based on representing data in terms of measurable physical quantities, in this case sound waves.

Report Error

View Answer Report Error Discuss

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

4 1718
Q:

The humidity of the air depends upon

A) Weather B) Temperature
C) Location D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Humidity means the amount of watervapour present in the atmosphere. It depends on weather, location and temperature of the place.

Report Error

View Answer Report Error Discuss

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

9 1715
Q:

An electron and a proton starting from rest get accelerated through potential difference of 100kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct?

A) Ve > Vp B) Ve < Vp
C) Ve = Vp D) Cannot be determined
 
Answer & Explanation Answer: A) Ve > Vp

Explanation:

Both when accelerated through a potential difference of 100KV, they will have the same energy. The mass of the electron is less than the mass of a proton, hence it will move faster(momentum).

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

3 1705
Q:

One billionth of a second is called

A) microsecond B) picoseconds
C) millisecond D) nanosecond
 
Answer & Explanation Answer: D) nanosecond

Explanation:

A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.

 

  • That is, 1/1,000,000,000 of a second, or 10^−9 seconds.
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 1693
Q:

An object having the capability to do work is said to possess

A) Inertia B) Force
C) Pressure D) Energy
 
Answer & Explanation Answer: D) Energy

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

0 1693
Q:

In a bipolar junction transistor

A) all the three regions (the emitter, the base and the collector) have equal concentrations of impurity B) the emitter has the least concentration of impurity
C) the collector has the least concentration of impurity D) the base has the least concentration of impurity
 
Answer & Explanation Answer: D) the base has the least concentration of impurity

Explanation:

In terms of concentration of impurity (a.k.a impurity doping concentration, often abbreviated to doping concentration), from the highest to the lowest among the three regions of a bipolar junction, emitter, collector, and base are the correct order. The above order is independent of the type of BJT, npn or pnp

Report Error

View Answer Report Error Discuss

Filed Under: Physics
Exam Prep: Bank Exams

1 1678
Q:

Granite is the examples of which rock ?

A) Igneous rock B) Sedimentary rock
C) Calcareous rock D) Matamorphic
 
Answer & Explanation Answer: A) Igneous rock

Explanation:

It forms slow crystallization of magma below Earth's surface.Granite is a hard light-colored igneous rock and it is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles and other minerals it is mainly used for building and monuments

Report Error

View Answer Report Error Discuss

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

1 1674