1. 1 nm is equivalent to
A. B. C. D. 0.01 mm
A
B
C
D
2. 1 nanometre is equal to
3. How much is one barrel of oil approximately equal to?
A. 131 L
B. 159 L
C. 257 L
D. 321 L
4. Which unit of measurement is multiplied by 0.39 to convert it to 'inches'?
A. Millimetre
B. Centimetre
C. Metre
D. Decimetre
5. How can the height of a person who is six feet tall, be expressed (approximately) in nm ?
A.
B.
C.
D.
6. Light year is the unit of
A. distance
B. time
C. energy
D. intensity of light
7. A parsec, a unit of distance used to measure the distance related to the stars in the sky, is equal to
A. 4.25 light years
B. 3.25 light years
C. 4.50 light years
D. 3.05 light years
8. Which one of the following is not correctly matched ?
9. Angstrom is a unit of
10. Light year is
A. light emitted by sun in one year
B. time taken by light to travel from sun to earth
C. the distance travelled by light in free space in 1 year
D. time taken by earth to go once around the sun
11. Which one of the following is a reason why astronomical distances are measured in light years?
A. Distances among stellar bodies do not change
B. Gravity of stellar bodies does not change
C. Light always travels in straight line
D. Speed of light is always same
12. Which of the following is not a unit of distance?
A. Light year
B. Parsec
C. Furlong
D. Jiffy
13. Parsec is the unit of
C. light intensity
D. magnetic force
14. How many watts are in one horse power?
A. 1000
B. 750
C. 746
D. 748
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