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
Exam Prep: Bank Exams

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Q:

If a ball is thrown up, which of the following does not change?

A) Acceleration	B) Speed
C) Potential energy	D) Distance

Answer & Explanation Answer: A) Acceleration

Explanation:

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Q:

Elements A, B and C occur as Dobereiners triads. If the atomic mass of A is 7 and that of C is 39, what will be the atomic mass of B?

A) 20	B) 40
C) 23	D) 12

Answer & Explanation Answer: A) 20

Explanation:

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Filed Under: Chemistry
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Q:

__________________ is a drug or substance that makes you feel relaxed and makes your body work and react more slowly.

A) Antidote	B) Analgesic
C) Antihistamine	D) Depressant

Answer & Explanation Answer: D) Depressant

Explanation:

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Filed Under: Biology
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Q:

The chemical component that is invariably found in all viruses is

A) proteins	B) lipids
C) DNA	D) RNA

Answer & Explanation Answer: A) proteins

Explanation:

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Filed Under: Biology
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Q:

Improve the bracketed part of the sentence.
The communities of ants are sometimes very large, (numbered) even upto 500 individuals: and it is a lesson to us that no one has ever yet seen quarrel between
any two ants belonging to the same community.

A) number	B) numerous
C) numbering	D) No improvement

Answer & Explanation Answer: C) numbering

Explanation:

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Filed Under: English

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Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Indirect/Direct speech.
Sahil said to me, "Where will you go this holiday?"

A) Sahil asked me where I would go that holiday.	B) Sahil asked me where I will go that holiday.
C) Sahil asked me where I will be going that holiday.	D) Sahil asked me where I would gone that holiday.

Answer & Explanation Answer: A) Sahil asked me where I would go that holiday.

Explanation:

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Filed Under: English

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Q:

A recurring theme in economics is that people:

A) Can increase resources by limiting their economic wants	B) Have unlimited resources, but limited economic wants
C) Have unlimited economic wants, but limited resources	D) Have limited economic wants and limited resources

Answer & Explanation Answer: C) Have unlimited economic wants, but limited resources

Explanation:

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Filed Under: Indian Economy
Exam Prep: Bank Exams , CAT

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