Q:

Sunspots appear dark because they are

A) hotter than the rest of the Sun's surface.	B) more magnetic than the rest of the Sun's surface.
C) cooler than the rest of the Sun's surface.	D) None of the above

Answer & Explanation Answer: C) cooler than the rest of the Sun's surface.

Explanation:

Sunspots are a magnetic phenomenon on the Sun.

The reason a sunspot appears dark is that they are cooler than the rest of the Sun's surface and also the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface.

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Filed Under: Physics
Exam Prep: Bank Exams , CAT

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Q:

What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?

A) 1/2 Ek	B) 4 Ek
C) There will be no change in Ek	D) 2 Ek

Answer & Explanation Answer: B) 4 Ek

Explanation:

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

If an object is placed at the center of curvature of a concave mirror, then the image formed will be

A) virtual and enlarged	B) virtual and diminished
C) real and of the same size	D) real and enlarged

Answer & Explanation Answer: C) real and of the same size

Explanation:

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

49th Parallel is the boundary line between which two countries?

A) USA and Canada	B) North and South Vietnam
C) Germany and France	D) Brazil and Chile

Answer & Explanation Answer: A) USA and Canada

Explanation:

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Filed Under: World Geography
Exam Prep: Bank Exams

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Q:

What is the capital of Austria?

A) Buenos Aires	B) Rome
C) Vienna	D) Dublin

Answer & Explanation Answer: C) Vienna

Explanation:

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Filed Under: Country Capitals
Exam Prep: Bank Exams

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Q:

Who is the author of the book titled 'Numbers Do Lie'?

A) Anil Menon	B) Akash Chopra
C) Ian Chapell	D) Kunal Basu

Answer & Explanation Answer: B) Akash Chopra

Explanation:

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Filed Under: Books and Authors
Exam Prep: Bank Exams

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Q:

SAARC Agriculture Centre (SAC) is based in which city?

A) Islamabad	B) Dhaka
C) Colombo	D) Kathmandu

Answer & Explanation Answer: B) Dhaka

Explanation:

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Filed Under: World Organisations
Exam Prep: Bank Exams

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Q:

If $\sqrt{1 + \frac{y}{16}} - \frac{7}{4}$ , then the value of 5y-15

A) 110	B) 130
C) 150	D) 160

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