Question

1. The acceleration due to gravity on the surface of the moon is *

1 point

9.8 m/s/s

1.825 m/s/s

1.625 m/s/s

1.925 m/s/s

2. To project the rockets which of the following is or are required *

1 point

law of conservation of linear momentum

Newton's third law

Newton's universal law of gravitation

both B and c

3. Different coloured light has different wavelength &................*

1 point

pitch

frequency

amplitude

time period

4. when a beam of light is refracted through any transparent medium such as glass or water split into components this phenomenon is called dispersion of light *

1 point

true

false

Option 3

5. According to Rayleigh's scattering law the amount of scattering of light is inversely proportional to the................ power of its wavelength
*

1 point

square

cube

fourth

twice

6. ............ scattering is responsible for the white appearance of the clouds *

1 point

Raman

tyndall

Mie

Rayleigh's

7. According to cartesian sign convention of spherical lenses, all the distance of measured from the.............of the lenses

1 point

principal focus

optical centre

centre of curvature

radius of curvature

8. Hypermetropia can be corrected by using concave lens

1 point

true

false

9. The unit of coefficient of cubical expansion is

1 point

per Kelvin

per degree Celsius

per cubic metre

per gram

10. Ideal gas equation is

1 point

PV= R

P/V=RT

PV = RT

P/R=T

​

Answer 1

Answer:

1...1.625m/s/s...can u more explain it

Explanation:

...