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:

Sound is a form of ____________ which produces a sensation of hearing in our ears.

A) power	B) energy
C) force	D) momentum

Answer & Explanation Answer: B) energy

Explanation:

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Q:

1kWH = .........J

A) 3.6×10^-8	B) 3.6×10^-6
C) 3.6×10^8	D) 3.6×10^6

Answer & Explanation Answer: D) 3.6×10^6

Explanation:

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Q:

_____ mirror is used in the headlights of cars.

A) Semi-circular	B) Conical
C) Convex	D) Concave

Answer & Explanation Answer: D) Concave

Explanation:

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Q:

The time period of a sound wave is 0.01 seconds. Find its frequency (in Hz).

A) 100	B) 10
C) 50	D) 20

Answer & Explanation Answer: A) 100

Explanation:

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Q:

The boiling point of an alcohol is 78 $°$ C. What is the temperature in Kelvin scale?

A) 78K	B) 341 K
C) 373 K	D) 351 K

Answer & Explanation Answer: D) 351 K

Explanation:

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Q:

Indian Banks' Association, formed on 26 September 1946 as a representative body of management of banking in India operating in India - an association of Indian banks and financial institutions based in Mumbai. Who is present Chairman of IBA?

A) Jatinder Bir Singh	B) Dinabandhu Mohapatra
C) Sunil Mehta	D) Rajnish Kumar

Answer & Explanation Answer: C) Sunil Mehta

Explanation:

Punjab National Bank (PNB's) managing director and chief executive, Sunil Mehta was elected as new chairman of Indian Banks Association (IBA) for year 2018-19. Bank of India's managing director and chief executive Dina Bandhu Mohapatra was elected as the deputy chairman. Indian Banks' Association, formed on 26 September 1946 as a representative body of management of banking in India operating in India - an association of Indian banks and financial institutions based in Mumbai.

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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

blood is thicker than water

A) relations are more important than merit	B) all crimes are not equal so punishment for murder is not same as that of theft
C) family relationships and loyalties are the strongest and most important ones	D) deceit from a family member hurts more than being cheated by strangers

Answer & Explanation Answer: C) family relationships and loyalties are the strongest and most important ones

Explanation:

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