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Q:

Which type of electromagnetic radiation has the shortest wavelength?

A) Gamma rays	B) X-rays
C) Radio waves	D) Infrared rays

Answer & Explanation Answer: A) Gamma rays

Explanation:

The order of wavelengths of electromagnetic spectrum is as follows ::

(Shortest to Longest) - Gamma, X-Rays, UV, Visible, Infrared, Microwaves, Radio Waves.

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Filed Under: Physics
Exam Prep: Bank Exams

Q:

A boy buys 5 pencils at Rs 3 each, 3 erasers at Rs 2 each and 3 sharpeners at Rs 5 each. What is the average expenditure (in Rs) per article?

A) 3.27	B) 3.5
C) 4	D) 5

Answer & Explanation Answer: A) 3.27

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

Q:

If U = 450 and V = 585, then V is how much percentage more than U?

A) 130	B) 23.07
C) 25	D) 30

Answer & Explanation Answer: D) 30

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

The figure shown below consists of the tangents at the extremeties of any chord. Choose the correct option given below.

A) ∡PAC = ∡PBC	B) ∡APC = ∡BPC
C) ∆PAC ≅ ∆PBC	D) All options are correct

Answer & Explanation Answer: D) All options are correct

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams , CAT

Q:

What is the value of $z^{2} + \frac{1}{z^{2}}$ when $z = 5 + 2 \sqrt{6}$ ?

A) 49	B) 50
C) 98	D) 100

Answer & Explanation Answer: C) 98

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

1595 is the sum of the square of three consecutive odd numbers. Find the numbers.

A) 19, 21, 23	B) 17, 19, 21
C) 21, 23, 25	D) 23, 25, 27

Answer & Explanation Answer: C) 21, 23, 25

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

Q:

If the value $\sqrt{5} = 2.236$ ,then calculate the value of $\sqrt{405} - \frac{1}{2} \sqrt{80} - \sqrt{125}$

A) 2.236	B) 4.472
C) 1.118	D) 8.994

Answer & Explanation Answer: B) 4.472

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

Q:

Which of the following cube in the answer figure cannot be based on the unfolded cube in the question figure?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Cubes and Dice
Exam Prep: Bank Exams , CAT

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