# 12th Grade Physics Practice Questions! Quiz

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Meyya22
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Quizzes Created: 6 | Total Attempts: 111,837
Questions: 10 | Attempts: 4,310

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• 1.

### Electric field is a --------------field, since force is a------------ quantity

• A.

Vector,Vector

• B.

Scalar,Vector

• C.

Vector,Scaler

• D.

Scalar,Scalar

A. Vector,Vector
Explanation
"The term field in physics generally refers to a quantity that is
defined at every point in space and may vary from point to point."

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• 2.

### __________= 1V/A

• A.

1℮

• B.

1Ω

• C.

• D.

B. 1Ω
Explanation
unit of resistance.

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• 3.

### The modern ac generator with a typical output capacity of ------ is a highly evolved machine.

• A.

0-50 MW

• B.

50-90 MW

• C.

90-110MW

• D.

30-70 MW

C. 90-110MW
Explanation
The modern ac generator with a typical output capacity of 100 MW is a highly evolved machine.

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• 4.

### The difference is often called the ________ of the circuit

• A.

Bindwidth

• B.

Brandwidth

• C.

Bandwidth

• D.

Boundwidth

C. Bandwidth
Explanation
related to Sharpness of resonance

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• 5.

### For paraxial rays tanø=ø, now tan(n-1)ø=? Consider ø is small

• A.

Nø-ø

• B.

ø

• C.

• D.

A. Nø-ø
Explanation
since, tanø=ø then tan(n-1)ø=nø-ø

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• 6.

### Ammeter is used to measure ----------.

• A.

A

• B.

µA

• C.

MA

• D.

All the above

D. All the above
Explanation
All denotes various unit of current

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• 7.

### Frequency band of Satellite Communication is ---------------------

• A.

540-1600 kHz

• B.

3.7-4.2 GHz

• C.

88-108 MHz

• D.

420-890 MHz

B. 3.7-4.2 GHz
Explanation
Frequency band of Satellite Communication

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• 8.

### LtR=        Voltage applied to a__________

• A.

Series RLC

• B.

Parallel LC

• C.

Parallel LCR

• D.

Series CR

A. Series RLC
Explanation
According to AC voltage drived from kirchhoff's loop rule.

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• 9.

### =      This relation is known as______

• A.

Mirror equation

• B.

Thin lens formula

• C.

First focal point formula

• D.

Second focal point formula

B. Thin lens formula
Explanation
By applying sign convention in refraction by a lens

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• 10.
• A.

Reactance diagram

• B.

Impedance diagram

• C.

Capacitance diagram

• D.

Phasor diagram