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#### Physics Solved MCQs Online Quiz Test

Q.1: How many types of units are in SI ?

- 1
- 2
- 3
- 4

C

Q.2: In scientific notation, numbers are expressed in——–?

- Power of ten
- Powers of two
- Reciprocal
- Decimal

A

Q.3: 1024 can be written in scientific notation as——-?

- 1.024×103
- 2 Raised to power 10
- 0.000976
- 1/0.00097

A

Q.4: Prefix deca represents——–?

- 10 Raised to power 1
- 10 Raised to power 2
- 10 Raised to power 3
- 10 Raised to power -1

A

Q.5: The error in measurement may occur due to———?

- The inexperience of a person
- The faulty apprentice
- Inappropriate method
- Due to all reasons in A, B and C

D

Q.6: The uncertainty in a measurement may occur due to——–?

- Limitation of an instrument
- Natural variation of the object to be measured
- Inadequate technique
- All given in A, B and C

D

Q.7: Random errors can be reduced by——–?

- Taking zero correction
- Comparing the instrument with another more accurate one
- Taking mean of several measurements
- All methods explained in A, B and C

C

Q.8: In any measurement the significant figures are——-?

- All accurately known and all doubtful digits
- Only accurately known digits
- Only doubtful digits
- All accurately known digits and the first doubtful digit

D

Q.9: A digit zero in a measurement———?

- May be significant may not significant
- Always significant
- Always insignificant sign
- Significant only if left to a significant figure

A

Q.10: Number of significant figures in 0.0173 is———?

- 3
- 4
- 5
- 2

A