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Mock Quiz 31

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Question 1

What is the chemical nature of SRS-A that constricts airways of arieries and increases the bronchial mucus production?

Question 2

In which medium does entamoeba histolytica transmit?

Question 3

Necessary temperature for sperm formation in scrotum is

Question 4

Nourishment and storage of sperms take place in

Question 5

The procedure where recombinant DNA is directly injected into the nucleus of target cells by microneedles is called

Question 6

How long will it take for a 40 g sample of I-131 (half-life = 8.040 days) to decay to 1/100 its original mass?

Question 7

Rn-222 has a half-life of 3.82 days. How much time before only 1/16 of the original sample in present?

Question 8

An optically active compound is

Question 9

The half-life of Palladium-100 is 4 days. In 12 days sample deplete to 4.00 mg. Determine starting mass?

Question 10

Double bonds cause ____ repulsion than single bonds

Question 11

Effective resistance between A and B

Question 12

A circuit consisting of an inductor and a resistance is joined to a 200 V ac supply. It draws a current of 10 A. If the power used in the circuit is 1500 W, then what will be the power factor and the wattles current?

Question 13

A copper wire

long is stretched by

. If the energy stored in the stretched wire is converted to heat, find the rise in temperature of the wire. (

, density of copper is

and specific heat of copper is

)

Question 14

What will be the value of the surface charge density for the infinitely charged 24- carat gold plate if it is known that each two equipotential surfaces separated by 100 m have potential difference of 5000 V.

Question 15

To check the knowledge of graduate student a professor asked that what the equipotential surfaces of the uniformly charged sphere are.

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Sep 25NEET & AIIMS