CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 24 - 28 of 696

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Question 24

Appeared in Year: 2013

Question MCQ▾

A loaded dice has the probabilities of turning up 1, 2, 3,4, 5, and 6 respectively. If it is thrown twice, what is the probability that the sum of the numbers that turn up in even? (December)

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 25

Appeared in Year: 2013

Question MCQ▾

In a basis in which the z – component of the spin is diagonal, an electron is in a spin state,

The probability that a measurement of will yield the value and are, respectively,

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 26

Appeared in Year: 2013

Question MCQ▾

The acceleration due to gravity g is determined by measuring the time period T and the length L of a simple pendulum. If the uncertainties in the measurements of T and L are and respectively, the fractional error in measuring is best approximated by, (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 27

Appeared in Year: 2013

Question MCQ▾

The components of a vector potential are given by,

Where k is a constant. The three component of the electric field are – (June)

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 28

Appeared in Year: 2013

Question MCQ▾

Ten grams of ice at 00 C is added to a beaker containing 30 grams of water at 250 C. What is the final temperature of the system when it comes to thermal equilibrium?

(The specific heat of water is and latent heat of melting of ice is ) (June)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit