Q:

Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye?

A) 200 nm and 500 nm	B) 500 nm and 1000 nm
C) 500 nm only	D) 200 nm and 1000 nm

Answer & Explanation Answer: C) 500 nm only

Explanation:

Visual image of human eye is 390-700 nanometer. So, approximate value is 500 nanometer only.

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The International Court of Justice was established in the year

A) 1947	B) 1946
C) 1950	D) 1948

Answer & Explanation Answer: B) 1946

Explanation:

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Filed Under: World Organisations

2 2778

Q:

DNA is a long chain made of repeating units called aminoacids.

A) TRUE

B) FALSE

Answer & Explanation Answer: B) FALSE

Explanation:

The repeating units that are used to form the helical DNA structure are called nucleotides.

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Subject: General Science
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

0 2777

Q:

Ozone is concentrated in the

A) Stratosphere	B) Troposphere
C) Ionosphere	D) Mesosphere

Answer & Explanation Answer: A) Stratosphere

Explanation:

Most of the ozone in the atmosphere is found in the layer of stratosphere, which begins about 10.16 kilometers (6.10 miles) above Earth's surface and extends up to about 50 kilometers (31 miles) altitude.

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Filed Under: Chemistry
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Q:

Carbon disulfide is prepared by heating sulfur and charcoal.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

Yes, Carbon disulfide is prepared by heating sulfur and charcoal.

S2 + C ----> CS2

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Subject: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Cognitive neuroscientists can examine the brain with

A) PET & MRI	B) Gama images & electrolysis
C) electrolysis & PET	D) MRI & electrolysis

Answer & Explanation Answer: A) PET & MRI

Explanation:

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Filed Under: General Science
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Q:

The shape of the nucleus is maintained by

A) the nuclear lamina	B) the nuclear envelope
C) the nucleolus	D) the endoplasmic reticulum

Answer & Explanation Answer: A) the nuclear lamina

Explanation:

The shape of the nucleus is maintained by the nuclear lamina.

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Filed Under: General Science
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Q:

Red Cross was founded by

A) J.H.Durant	B) Baden Powell
C) Tygve Lie	D) Frederic Passey

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