Q:

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at :

A) 518 nm	B) 1035 nm
C) 325 nm	D) 743 nm

Answer & Explanation Answer: D) 743 nm

Explanation:

$\frac{1}{λ} = \frac{1}{λ 1} + \frac{1}{λ 2}$

$\frac{1}{355} = \frac{1}{680} + \frac{1}{λ 2}$

$\frac{1}{λ 2} = \frac{680 - 355}{680 \times 355}$

$\Rightarrow λ 2 = 743 n m$ .

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Filed Under: Chemistry
Exam Prep: AIEEE

12 9224

Q:

Rearrange the parts of the sentence in correct order.

Bringing equity

P : for the rural population should be

Q : a priority for the National Health Mission

R : in access to the doctors and medicines

A) QRP	B) RQP
C) PRQ	D) RPQ

Answer & Explanation Answer: D) RPQ

Explanation:

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Filed Under: English
Exam Prep: Bank Exams , GRE , TOEFL

0 9222

Q:

What holds the sides of the DNA ladder together?

A) Polar covalent bonds	B) Ionic bonds
C) Metallic bonds	D) Covalent bonds

Answer & Explanation Answer: D) Covalent bonds

Explanation:

Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk , Bank PO

16 9214

Q:

Improve the bracketed part of the sentence.

She could not cope (by) the heavy workload.

A) with	B) of
C) up	D) no improvement

Answer & Explanation Answer: A) with

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 9213

Q:

A function cannot be defined inside another function

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

A function cannot be defined inside the another function, but a function can be called inside a another function.

Workspace

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Subject: Programming

5 9209

Q:

Select the synonym of

bouffant

A) braid	B) barren
C) hirsute	D) glabrous

Answer & Explanation Answer: A) braid

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 9207

Q:

What is poverty gap?

A) the difference between poverty line and actual income level of all those living below that line	B) gap between developed and developing nations
C) gap between the rich and the poor	D) gap between infrastructural facilities in developed and developing nations

Answer & Explanation Answer: A) the difference between poverty line and actual income level of all those living below that line

Explanation:

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Filed Under: Indian Economy
Exam Prep: Bank Exams

1 9201

Q:

This refers to the ordering of elements in a sentence

A) phrases	B) syntax
C) disorder	D) disorganisation

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