A man is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length `10 cm`. The diameter of the sun is `1.39 xx 10^(9) m` and the diameter of the sun's image on the paper is

A boy is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10cm . The diameter of the sun is 1.39xx10^(9)m and its mean distance from the earth is 1.5xx10^(11)m . What is the diameter of the sun's image on the paper ?

A boy is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10cm . The diameter of the sun is 1.39xx10^(9)m and its mean distance from the earth is 1.5xx10^(11)m . What is the diameter of the sun's image on the paper ?

A boy is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10 cm.The diameter of the sum is 1.39xx10^9 m and its mean distance from the earth is 1.5xx10^11 m. What is the diameter of the sun's image on the paper?

A boy is trying to start a fire by focussing sunlight on a piece of paper using an equiconvex lens of focal length 10 cm.The diamerter of the sun is 1.39 xx 10^9 m and its mean distance form the earth is 1.5 xx 10^(11) .What is the diameter of the sun's image on the paper?

The diameter of the sun is expressed as 13.9xx 10^(9) m . Find the order of magnitude of the diameter ?

If the diameter of the Sun is 1.4xx10^9 m and that of Earth is 1.275xx10^4 km .Compare the two.

If the diameter of the Sun is 1.4xx10^(9)m and that of Earth is 1.275xx10^(4)km. Compare the two.

The diameter of the sun is ~~ 10^9 m , but it appears to be a small disc, why ?

A boy focuses Sunlight on a paper by using biconvex lens of focal length 10 cm. Such that paper can be burnt. Diameter of Sun is 1.39 xx 10^9 m and distance of Earth from Sun is 1.5 xx 10^(11) m approximately, then the diameter of image of Sun on paper will be

The sun makes 0.5^(@) angle on earth surface. Its image is made by convex lens of 50 cm focal length. The diameter of the image will be