(i) No rainbow could be observed from the surface of moon by the astronauts. What could be the possible reason ?

Monjur Alahi

(i) No rainbow could be observed from the surface of moon by the astronauts. What could be the possible reason ?

(ii) What is meant by power of accommodation of an eye? State the role of ciliary muscles in accommodation.


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

(i) The rainbow is formed only if the atmosphere contain large number of tiny droplets of water suspended in the air. As moon has neither atmosphere nor water therefore no rainbow is formed.
 

(ii) The ability of the eye to focus the distant objects as well as the nearby objects on the retina by changing the focal length or converging power of lens is called accommodation.
Ciliary muscles can modify or change the curvature of the eye lens change the focal length of the eye lens.

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
If the moon attracts the earth, why does the earth not move towards the moon?

The Earth and the moon experience equal gravitational forces from each other. However, the mass of the Earth is much larger than the mass of the moon. Hence, it accelerates...

1 Answers 1 views
Phases of the moon occur because a. we can see only that part of the moon which reflects light towards us.

Yes, you wrote right.

1 Answers 1 views
Why does the sky appear dark to astronauts?

For scattering of light, particles are required. Since there are no particles in space, the sky appears dark to astronauts.

1 Answers 1 views
Can an observer see a rainbow on the moon?

No, since there is no atmosphere on the moon.

1 Answers 1 views
Can we see a rainbow on the moon? why

Rainbow can never be formed in moon. Moon doesn’t have any atmosphere to hold tiny water droplets after rain (there is no scope of rain also in moon) which can...

1 Answers 1 views
Two fat astronauts each of mass 120 kg are travelling in a closed spaceship moving at a speed

Since the spaceship is removed from any material object & totally isolated from surrounding, the missions by astronauts couldn’t slip away from the spaceship. So the total mass of the...

1 Answers 1 views
Two astronauts are floating in gravitational free space after having lost contact

(1) Both the astronauts are in the condition of weightness. Gravitational force between them pulls towards each other. Hence Astronauts move towards each other under mutual gravitional force.

1 Answers 1 views
In primary rainbow what is the order of colours observed from earth ? (a) Violet innermost, red outermost.

(a) Violet innermost, red outermost.

1 Answers 1 views
In secondary rainbow what is the order of colours observed from earth? (a) Violet innermost, red outermost.

(b) Red innermost, violet outer most.

1 Answers 1 views
When is the next full moon? At what time will the moon rise on this day? What does the moon look like on this day? Draw it.

The next full moon is on 15th of this month. That day the moon will rise a little rate – at round 9.00 pm. The moon will look spherical on...

1 Answers 1 views
X