KVPY Stream-SA (Class 11) Physics: Questions 106 - 108 of 242

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Question number: 106

» Properties of Solids & Liquids » Specific Heat Capacity

Appeared in Year: 2013

MCQ▾

Question

A 10.0 W electrical heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of the water and the container rise by 3 K in 15 minutes. The container is then emptied, dried, and filled with 2 kg of oil. It is now observed that the same heater raises the temperature of the container-oil system by 2 K in 20 minutes. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is.

Choices

Choice (4) Response

a.

2.5×103JK1kg1

b.

3.0×103JK1kg1

c.

5.1×103JK1kg1

d.

1.5×103JK1kg1

Question number: 107

» Atoms and Nuclei » Isotopes

Appeared in Year: 2014

MCQ▾

Question

Consider the following statements. The correct statement regarding an isotope is,

(i) All isotopes of an element have the same number of neutrons

(ii) Only one isotope of an element can be stable and non-radioactive

(iii) All elements have isotopes

(iv) All isotopes of Carbon can form chemical compounds with Oxygen-16

Select any one of following,

Choices

Choice (4) Response

a.

(ii) and (iv) are correct

b.

(i), (ii) and (iii) are correct

c.

(iii) and (iv) are correct

d.

(i) and (iii) are correct

Question number: 108

» Kinematics » Relative Velocity

Appeared in Year: 2014

MCQ▾

Question

In the following displacement (x) vs time (t) graph, at which among the points P, Q, and R is the object’s speed increasing?

Graph of displacement (x) vs time (t)

Graph of Displacement (X) vs Time (T)

In figure graph of displacement (x) vs time (t) is shown. P, Q and R are points among the graph.

Choices

Choice (4) Response

a.

R only

b.

P, Q, R

c.

P only

d.

Q and R only

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