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.

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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

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Q:

Which of the following is false with reference to a photo-voltaic cell?

A) It is another name as solar cell	B) It can be used as infra-red detectors
C) It can store light energy in the form of electrical energy	D) It converts electric energy into light energy

Answer & Explanation Answer: D) It converts electric energy into light energy

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Q:

The boundary between Earth's crust and mantle is _____.

A) Moho discontinuity	B) Lehman discontinuity
C) Conrad discontinuity	D) Gutenberg discontinuity

Answer & Explanation Answer: A) Moho discontinuity

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Q:

Which of the following sources has the largest share in power generation in India?

A) Atomic power	B) Thermal power
C) Hydro power	D) Wind power

Answer & Explanation Answer: B) Thermal power

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Q:

Uranus is the _______ planet from the Sun.

A) First	B) Third
C) Fifth	D) Seventh

Answer & Explanation Answer: D) Seventh

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Q:

When was "Pradhan Mantri Mudra Yojana" launched?

A) September 2014	B) November 2014
C) April 2015	D) January 2016

Answer & Explanation Answer: C) April 2015

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Q:

Constantly running system - program processes are known as

A) Daemons	B) Processes
C) Process Block	D) Process Control Block

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