Questions

Q:

For an ideal gas, which one of the following statements does not hold true?

A) The speed of all gas molecules is same B) The kinetic energies of all gas molecules are not same
C) The potential energy of the gas molecules is zero D) There is no interactive force between the molecules.
 
Answer & Explanation Answer: A) The speed of all gas molecules is same

Explanation:

In an ideal gas, at any particular time, different particles in the gas have different speeds and hence different kinetic energies. This assumption is reasonable because as the particles collide, we expect their speed to change. Even if initial speed of all the particles was same, the molecular collisions will disrupt this uniformity.Hence statement 1 is incorrect and 2 is correct.

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Filed Under: Physics
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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:

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:

Write an RTL Description for D latch and D flip flop?

Answer

For D latch: always@(enable) q<=d;


For D flip flop: always@(opsedge clock) q<=d; 

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Subject: Hardware

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Q:

Before mount everest was discovered, what was the highest mountain on Earth?

Answer

It was Mount Everest. It was not discovered yet but it was the highest mountain on the Earth.

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Subject: Logic Puzzles Exam Prep: CAT , Bank Exams
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Q:

The 'Blue Water Policy' was introduced by the Portugese leader_________

A) Franscisco-de-Almeida B) Alfonso de Albuquerque
C) Francis Caron D) Francis Martin
 
Answer & Explanation Answer: A) Franscisco-de-Almeida

Explanation:
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Filed Under: Indian History
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Q:

Name the Bollywood actor who received Kala Ratan Award in March 2017?

A) Naseeruddin Shah B) Akshay Kumar
C) Anupam Kher D) Jitendra
 
Answer & Explanation Answer: C) Anupam Kher

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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Filed Under: General Science
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