Q:

The large collection of stars, dust and gas held together by gravitational attraction between components is known as

A) Cluster	B) Atmosphere
C) Galaxy	D) Sun Family

Answer & Explanation Answer: C) Galaxy

Explanation:

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Q:

HEPA filters are used to remove microbes from

A) human tissues	B) air
C) medical instruments	D) liquids

Answer & Explanation Answer: B) air

Explanation:

High-efficiency particulate air (HEPA), also known as high-efficiency particulate absorbing and high-efficiency particulate arrestance, is an efficiency standard of air filter.

hepa-filters1596516018.png image

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Q:

A sound wave has a frequency of 4 kHz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is

A) 0.5 s	B) 2.0 s
C) 4.0 s	D) 1.0 s

Answer & Explanation Answer: B) 2.0 s

Explanation:

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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

Explanation:

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Q:

Part IV of constitution of India deals with which of the following?

A) The Union	B) The States
C) Fundamental Rights	D) Directive Principles of State Policy

Answer & Explanation Answer: D) Directive Principles of State Policy

Explanation:

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Q:

The Sharda Act is related to

A) Upliftment of scheduled tribes	B) Upliftment of minorities
C) Child Marriage	D) Empowerment of women

Answer & Explanation Answer: C) Child Marriage

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Q:

Houses of Indian Parliament are prorogued by whom?

A) Speaker of Lok Sabha	B) Chairman of Rajya Sabha
C) Prime Minister of India	D) President of India

Answer & Explanation Answer: D) President of India

Explanation:

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Q:

The number of seats of Lok Sabha was increased from 525 to ___ in 1973.

A) 560	B) 555
C) 550	D) 545

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