Q:

In case of a standard hydrogen electrode

A) absolute electrode potential is not zero	B) absolute electrode potential is zero
C) both absolute and standard electrode potential values are zero	D) electrode potential is zero only at 25 deg C

Answer & Explanation Answer: A) absolute electrode potential is not zero

Explanation:

The Standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials. Its absolute electrode potential is estimated to be 4.44 ± 0.02 V at 25 °C, but to form a basis for comparison with all other electrode reactions, hydrogen's standard electrode potential (E0) is declared to be zero volts only at 298.

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Q:

In the following question, four words are given out of which one word is incorrectly spelt. Find the incorrectly spelt word.

A) Tranquillity	B) Perseverence
C) Resplendence	D) Accommodation

Answer & Explanation Answer: B) Perseverence

Explanation:

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Q:

Who gave the title 'Nightingale of India' to Sarojini Naidu ?

A) Jawaharlal Nehru	B) Rabindranath Tagore
C) Rajendra Prasad	D) Mahatma Gandhi

Answer & Explanation Answer: D) Mahatma Gandhi

Explanation:

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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.
Practice makes a man perfect

A) Perfection demands patience	B) Any problem can be solved if you are willing to try many times
C) Regular activity is the way to become proficient in it	D) It takes a long time to form a good habit

Answer & Explanation Answer: C) Regular activity is the way to become proficient in it

Explanation:

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Q:

The colour of a thin film is due to

A) Scattering	B) Dispersion
C) Diffraction	D) Interference

Answer & Explanation Answer: D) Interference

Explanation:

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. The color bands in thin films are a result of wavelength dependent interference caused by the close spacing of the surfaces of the film.

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Q:

Find the resistance (in mega Ω) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200 Ωm.

A) 40	B) 4000
C) 80	D) 2000

Answer & Explanation Answer: A) 40

Explanation:

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Q:

Which of the following is not a benefit of swimming?

A) full body exercise	B) burn less than 400 calories per hour
C) joints supported in water	D) good exercise for cross training

Answer & Explanation Answer: B) burn less than 400 calories per hour

Explanation:

Actually by swimming a person can easily burn more than 450 calories upto 920 calories per an hour. So, burn less than 400 calories per hour is not correct regarding swimming.

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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

The news (had appeared) irrelevant at that time, but now it directly affects us.

A) have appeared	B) is appeared
C) had appears	D) no improvement

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