Questions

Q:

Ocean between Africa and Australia?

A) Atlantic B) Pacific
C) Indian D) Arctic
 
Answer & Explanation Answer: C) Indian

Explanation:

Indian Ocean is between Africa and Australia and separates them.

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Q:

Which of the following is a property of water?

A) High polarity B) Universal solvent
C) High specific heat D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Yes, we know that water is a universal solvent.

 

Water can moderate temperature because of the two properties: high-specific heat and the high heat of vaporization.

 

Water is a polar molecule that has a high level of polarity and attraction to ions and other polar molecules.

 

Hence, all the above given options are the properties of water.

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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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Filed Under: Physics
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Q:

Calculate the time period (in seconds) of a sound wave of wavelength 2m travelling with a speed of 250 m/s.

A) 500 B) 0.008
C) 0.016 D) 250
 
Answer & Explanation Answer: B) 0.008

Explanation:
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Q:

In Microsoft Word, ____________ are small dots, squares, dashes or graphics that are often seen before the text.

A) Indentation B) Bullets
C) Numbering D) Tabs
 
Answer & Explanation Answer: B) Bullets

Explanation:
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Q:

Where does the energy for photosynthesis come from?

A) sun light B) Chlorophyll
C) Soil D) Water
 
Answer & Explanation Answer: A) sun light

Explanation:

Photosynthesis is the process that takes place in leaves that converts light energy into chemical energy or sugars. It occurs in the presence of chlorophyll that is present in leaves as a green pigment, carbondi oxide and water with the help of sun light. So the energy for photosynthesis come from sun light.

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Q:

Name 5 different addressing modes?

Answer

Immediate, Direct, Register, Register indirect, Implied addressing modes.

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Subject: Hardware

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Q:

He has the irritating habit of playing his own trumpet all the time.

A) blowing his own trumpet B) pumping his own trumpet
C) bringing up his own trumpet D) No improvement
 
Answer & Explanation Answer: A) blowing his own trumpet

Explanation:
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