Question

Ans. 1057
1.
How many light years are there in one metre?
2.
Ans. (a) 750
nm (b) 7.5,
3.
ised to mea
eters and
Descrir
Vernie
intos
The value of capacitor is 2 uf. Express the value of capacitor in Farad.
The wavelength of light is 570 nm. What is its wavelength in Å?
The radius of a nucleus is 39.3 fermi. Express its volume in m'.
The mass of an oxygen atom is 16:00 u. Find its mass in kg.
4.
5.
Ans.6.03
6.
7.
Ans. 1.44
be 3 x 108 m s-, find the distance of the earth from the sun in km.
8.
9.
Ans.s.yg
The mass of proton is 1-67 x 10-27 kg. How many protons would make lg.
Convert an acceleration of 10 ms-2 in km h-2.
Ans. 1.29 x 10
10.
11.
AUS.
of parsec?
The wavelength of light of red colour is 7500 A. Express it in (a) nanometre and by
Ans. 2.656 *
Sun light takes time 8 min to reach the surface of earth from the sun. If speed of lights
Express the average distance of the earth from the sun in (i) light year (ii) parsec.
Ans. (i)1-58 x 10°ly (ii) 4.86
The nearest star to our solar system is 4.29 light years away. How much is this distance​

Answer 1

Explanation:

If the angular distance between the stars turns out to be approximately 1100 arcseconds, or 0.30 degrees.

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