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22102 Unit I online test

You got 11 of 15 possible points.
Your score: 73%
Question 1

In______________,there is very big gap between conduction band and valancy band 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Conductors 

0
Selected

Insulators 

Correct
1
Should have chosen

Semiwnduetors 

0

None of above 

0
Question 2

Which of the following wloues reflects more heat 

Score: 0 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

Black 

Incorrect
0

Blue 

0

White 

0
Should have chosen

Red

0
Question 3

Which of the following is highest energy band 

Score: 0 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Valancy band

0
Should have chosen

Energy band 

0

Conduction band 

0
Selected

None of above 

Incorrect
0
Question 4

In N - Type Semiconductor mayjority carriers are______________--

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Holes 

0
Selected

Electrons 

Correct
1
Should have chosen

Both of above 

0

None of above 

0
Question 5

In Charles law which of the following is constant 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

Pressure 

Correct
1
Should have chosen

Temperature 

0

Volume 

0

All of above 

0
Question 6

Which mode of heat transfer takes place without actual migration of particiles 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

Conduction 

Correct
1
Should have chosen

Conveection 

0

Radiatiion 

0

None of above

0
Question 7

Which mode of heat transfer is fastest as all other modes 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Conduction 

0

Convection 

0
Selected

Radilation 

Correct
1
Should have chosen

None of above 

0
Question 8

The ratio CP/CV is______________________

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

Equal to 0.5

Correct
1
Should have chosen

Equal to 1

0

Less than 1 

0

Greater than 1

0
Question 9

Which of the follwoing material is bad wnductor of heat 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

Glass 

Correct
1
Should have chosen

Copper 

0

Steel 

0

Aluminium 

0
Question 10

Which mode of heat transfer is slowest of all other models 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Convection 

0
Selected

Conduction 

Correct
1
Should have chosen

Radiation 

0

None of above 

0
Question 11

100ºC will be___________when converted into forhentie 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

-273 F 

0
Selected

212 F 

Correct
1
Should have chosen

273 F 

0

373 F 

0
Question 12

The Process by which heat reaches from surp to earth is 

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Convection 

0
Selected

Radiation

Correct
1
Should have chosen

Conduction 

0

None of above 

0
Question 13

The Boiling point of water in Kelvin scale of temperature is _______________

Score: 1 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

373 K

Correct
1
Should have chosen

273 K

0

100 K

0

212 K

0
Question 14

The boiling Point of water in farfhenite scale is_______________

Score: 0 of 1
Your answerChoiceCorrect?ScoreCorrect answer
Selected

212ºF

Incorrect
0

273ºF

0

373ºF

0
Should have chosen

100ºF

0
Question 15

A Cup of tea kept on table losses its heat by______________process 

Score: 0 of 1
Your answerChoiceCorrect?ScoreCorrect answer

Conduction 

0

Convection 

0
Selected

Radiation 

Incorrect
0

All of above 

0
Should have chosen