Q:

What is the heat generated (in J) in a heating element of resistance 1000 Ω when a current of 0.1 A passes through it for 25 seconds?

A) 250	B) 2500
C) 125	D) 1250

Answer & Explanation Answer: A) 250

Explanation:

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Q:

The theory behind stars twinkling is that

A) The refractive index of the different layers of earth's atmosphere changes continuously, consequently the position of the star's image changes with time	B) The intensity of light emitted by them changes with time
C) The light from the star is scattered by the dust particles and air molecules in the earth's atmosphere	D) The distance of the stars from the earth changes with time

Answer & Explanation Answer: A) The refractive index of the different layers of earth's atmosphere changes continuously, consequently the position of the star's image changes with time

Explanation:

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Q:

Which one of the following is the value of one nanometer?

A) 10-7 cm	B) 10-6 cm
C) 10-4 cm	D) 10-3 cm

Answer & Explanation Answer: A) 10-7 cm

Explanation:

1 nanometer (nm) of length

Equals: 0.00000010 centimetres (cm) in length.

This is equal to 10^-7 cm.

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Q:

Which of the following is false with reference to a photo-voltaic cell?

A) It is another name as solar cell	B) It can be used as infra-red detectors
C) It can store light energy in the form of electrical energy	D) It converts electric energy into light energy

Answer & Explanation Answer: D) It converts electric energy into light energy

Explanation:

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Q:

____________ scheme by the Central Government states that an insurance of 10 lakhs will cover each passenger traveling by Indian Rail while booking a ticket if an amount of 92paise is paid.

A) Gangajal Delivery Scheme	B) Mission Bhagiratha In Telangana
C) National Apprenticeship Promotion	D) Railway Travel Insurance

Answer & Explanation Answer: D) Railway Travel Insurance

Explanation:

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Q:

The boundary between Earth's crust and mantle is _____.

A) Moho discontinuity	B) Lehman discontinuity
C) Conrad discontinuity	D) Gutenberg discontinuity

Answer & Explanation Answer: A) Moho discontinuity

Explanation:

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Q:

Potato is a ?

A) Root	B) Stem
C) Bud	D) Fruit

Answer & Explanation Answer: B) Stem

Explanation:

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Filed Under: General Science

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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.

The dealer will service the scooter for free the first three times.

A) The scooter will be serviced for free by the dealer for the first three times.	B) The scooter was serviced for free by the dealer for the first three times.
C) For the first three times, the dealer will service the scooter for free.	D) Servicing of the scooter for free will be done by the dealer for the first three times.

Answer & Explanation Answer: A) The scooter will be serviced for free by the dealer for the first three times.

Explanation:

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