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Question 1 reset

A coil of inductance 300 mH and resistance 2 Ω is connected to a source of voltage 2 V. The current reaches half of its steady state value in

Question 2 reset
After two hours, one-sixteenth of the starting amount of a certain radioactive isotope remained undecayed. The half life of the isotope is
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A wire is connected to a battery between the point M and N as shown in the figure (1). The same wire is bent in the form of a square and then connected to the battery between the points M and N as shown in the figure (2). Which of the following quantities increases ?

Question 4 reset

In the circuit shown in figure the current through 4 Ω register is

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Which one of the following is an amine hormone ?
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Electrometallurgical process is used to extract
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Cadmium is used in nuclear reactors for?
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For the reaction given below, which one of the statement is correct at constant T and P ?

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Directions: Fill in the blank with an appropriate word.

China is a big country, in area it is bigger than any other country _________ Russia.

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Directions: Find out which part of a sentence has an error.

My father gave me (a) / a pair of binocular (b) / on my birthday. (c) / No error. (d)

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Directions: In the following question which answer figure will complete the question figure?

Question figure:

Answer figures:

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M is the son of P. Q is the grand daughter of O who is the husband of P. How is M related to O?

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AGMSY, CIOUA, EKQWC, ____?____ , IOUAG, KQWCI
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The number of roots of equation cos x + cos 2x + cos 3x = 0 is

(o < x < 2π)

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Find the value of f′(e)

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Evaluate the following limit, if it exists

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Given the system of straight lines a(2x + y – 3) + b(3x + 2y – 5) = 0, the line of the system situated farthest from the point (4, –3) has the equation

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The function f(x) = x - |x - x2|, -1 < x < 1 is continuous on the interval

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,then R(s) R(t) equals

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An observer on the top of a tree, finds the angle of depression of a car moving towards the tree to be 30°. After 3 minutes this angle becomes 60°. After how much more time, the car will reach the tree?

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