Questions

Q:

How many types of cancer are there in the world?

A) 56 B) 76
C) 96 D) 100
 
Answer & Explanation Answer: D) 100

Explanation:

There are more than 100 types of cancer in the world.

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Q:

An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's

A) First law B) Second law
C) Third law D) Fourth law
 
Answer & Explanation Answer: A) First law

Explanation:
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Q:

Transformer is a device to convert

A) D.C. to A.C. B) Low voltage D.C. into high voltage D.C.
C) Low voltage A.C. into high voltage A.C. D) Mechanical energy into Electrical energy
 
Answer & Explanation Answer: A) D.C. to A.C.

Explanation:
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Q:

If objects appear enlarged and inverted in a rear view mirror, then which type of mirror is used?

A) Concave B) Convex
C) Cylindrical D) Plane
 
Answer & Explanation Answer: A) Concave

Explanation:
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Q:

A  photon  of  X-ray  has  energy  of  1  keV.  A photon of visible radiation has energy of 3 eV.  In  this  context,  which  one  of  the following statements is not correct?

A) The wavelength of X-ray photon is less than the wavelength of visible radiation photon. B) Both    the    photons    have    different energies.
C) The  speeds  of  both  the  photons  in vacuum are different D) The   frequency   of   X-ray   photon   is higher  than  the  frequency  of  visible radiation photon.
 
Answer & Explanation Answer: C) The  speeds  of  both  the  photons  in vacuum are different

Explanation:

The speed of all the electromagnetic radiation are always   same   and   equal   to   the numerical value 3 x 10^8m/sec.

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Q:

Many satellites are placed in orbit in which layer?

A) Thermosphere B) Exosphere
C) Orthosphere D) Stratosphere
 
Answer & Explanation Answer: B) Exosphere

Explanation:
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Q:

Which space telescope discovered a new dwarf galaxy ‘Bedin 1’ in cosmic neighbourhood?

A) James Webb B) Hubble
C) Spitzer D) Planck
 
Answer & Explanation Answer: B) Hubble

Explanation:
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Q:

Whose recommendation is mandatory to impeach the President of India from his office before the completion of his/her term?

A) The Prime Minister B) The Speaker of the Lok Sabha
C) The Chief Justice of India D) The two houses of the parliament
 
Answer & Explanation Answer: D) The two houses of the parliament

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