A composite rod made of copper (1.8×10(-5) K(-1)) and steel (α=1.2×10(-5) K(-1)) is heated. Then ___________

It bends with steel on concave side

It bends with copper on concave side

Calorie is defined as the amount of heat required to raise the temperature of 1g of water by 1°C and it is defined under which of the following conditions?

From 14.5°C to 15.5°C at 760mm of Hg

From 98.5°C to 99.5°C at 760mm of Hg

From 13.5°C to 14.5°C at 76mm of Hg

From 3.5°C to 4.5°C at 76mm of Hg

Explore topic-wise MCQs in Engineering Physics Questions and Answers.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.	Temperatures of two stars are in ratio 3:2. If wavelength of maximum intensity of first body is 4000 Å, what is corresponding wavelength of second body?
A.	9000 Å
B.	6000 Å
C.	2000 Å
D.	8000 Å
Answer» C. 2000 Å

Discussion

2.	A composite rod made of copper (1.8×10(-5) K(-1)) and steel (α=1.2×10(-5) K(-1)) is heated. Then ___________
A.	It bends with steel on concave side
B.	It bends with copper on concave side
C.	It does not expand
D.	Data is insufficient
Answer» B. It bends with copper on concave side

Discussion

3.	On a hilly region, water boils at 95°C. What is the temperature expressed in Fahrenheit?
A.	100°F
B.	203°F
C.	150°F
D.	20.3°F
Answer» C. 150°F

Discussion

4.	540g of ice at 0°C is mixed with 540g of water at 80°C. What is the final temperature of the mixture?
A.	0°C
B.	40°C
C.	80°C
D.	Less than 0°C
Answer» B. 40°C

Discussion

5.	Compared to burn due to air at 100°C, a burn due to steam at 100°C is ___________
A.	More dangerous
B.	Less dangerous
C.	Equally dangerous
D.	Not dangerous
Answer» B. Less dangerous

Discussion

6.	Calorie is defined as the amount of heat required to raise the temperature of 1g of water by 1°C and it is defined under which of the following conditions?
A.	From 14.5°C to 15.5°C at 760mm of Hg
B.	From 98.5°C to 99.5°C at 760mm of Hg
C.	From 13.5°C to 14.5°C at 76mm of Hg
D.	From 3.5°C to 4.5°C at 76mm of Hg
Answer» B. From 98.5°C to 99.5°C at 760mm of Hg

Discussion

7.	A faulty thermometer has its fixed points marked as 5° and 95°. The temperature of a body as measured by the faulty thermometer is 59°. Find the correct temperature of the body on a Celsius scale.
A.	60°C
B.	40°C
C.	20°C
D.	0°C
Answer» B. 40°C

Discussion

Explore topic-wise MCQs in Engineering Physics Questions and Answers.

Temperatures of two stars are in ratio 3:2. If wavelength of maximum intensity of first body is 4000 Å, what is corresponding wavelength of second body?

A composite rod made of copper (1.8×10(-5) K(-1)) and steel (α=1.2×10(-5) K(-1)) is heated. Then ___________

On a hilly region, water boils at 95°C. What is the temperature expressed in Fahrenheit?

540g of ice at 0°C is mixed with 540g of water at 80°C. What is the final temperature of the mixture?

Compared to burn due to air at 100°C, a burn due to steam at 100°C is ___________

Calorie is defined as the amount of heat required to raise the temperature of 1g of water by 1°C and it is defined under which of the following conditions?

A faulty thermometer has its fixed points marked as 5° and 95°. The temperature of a body as measured by the faulty thermometer is 59°. Find the correct temperature of the body on a Celsius scale.