# Most Repeated SPSC SST MCQs  – Physics Questions Answers (Part -1)

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1. A worldwide system of measurements in which the units of base quantities were introduced is called

a) prefixes

b) international system of units

d) none of above

2. All accurately known digits and first doubtful digit in an expression are known as

a) non-significant figures

b) significant figures

c) estimated figures

d) crossed figures

3. If zero line of Vernier scale coincides with zero of main scale, then zero error is

a) positive b) zero

c) negative d) one

4. zero error of the instrument is

a) systematic error b) human error

c) random error d) classified error

5. Length, mass, electric current, time, intensity of light and amount of substance are examples of

a) base quantities b) derived quantities

c) prefixes d) quartile quantities

6. Scalar Quantities have …………. and suitable unit.

a) magnitude b) direction c) both a and b

7. Vector quantities have …………. along with magnitude and unit.

a) Magnitude b) direction c) both a and b

8. Which one is a vector quantity ………….

a) Mass b) Weight c) time

9. Distance is a ………….quantity.

a) Vector b) Scalar c) both a and b

10. What is SI unit of acceleration

a) ms-1 b) (m/s2) c) nm