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An astronaut is drifting away from his spaceship. How can he return to

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An astronaut is drifting away from his spaceship. How can he return to his spaceship using only an aerosol spray?

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Asked in Physics by Anjali | 46 Views

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If the eye is kept very close to a converging lens (focal length $=10 \mathrm{~cm}$ ) and at the optical centre of the lens and an object is kept at distance ' $d$ ' then the maximum distance ' $d$ ' of the object from the lens so that its image can be seen clearly by the defect free eye is :

Asked in Physics by Anubhav Agarwal | 40 Views

numerical
physics

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If the eye is kept very close to a converging lens (focal length $=10 \mathrm{~cm}$ ) and at the optical centre of the lens and an object is kept at distance ' $d$ ' then the minimum distance ' $d$ ' of the object from the lens so that its image can be seen clearly by the defect free eye is :

Asked in Physics by Anubhav Agarwal | 37 Views

numerical
physics

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Why does the sky appear dark instead of blue to an astronaut?

Asked in Physics by Ankit Kumar | 4 Views

physics

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A person kicks a one-kg football to score a goal. When he kicks a one-kg brick, his foot gets hurt. Give a reason for it.

Asked in Physics by Anjali | 25 Views

physics

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A person needs a lens of power -5.5 dioptres for correcting his distant vision. For correcting his near vision he needs a lens of power +1.5 dioptre. What is the focal length of the lens required for correcting (a) distant vision, and (b) near vision?

Asked in Physics by Ankit Kumar | 67 Views

physics

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If action is always equal to the reaction, explain how a horse can pull a cart.

Asked in Physics by Anjali | 52 Views

physics

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Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field?

Asked in Physics by Ankit Kumar | 3 Views

physics

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A gas bubble from an explosion under water oscillates with a time period $T$ which is proportional to $P ^{a} \rho^{b} E ^{c}$ where $P$ is the pressure

Asked in Physics by AlokKumar | 35 Views

numerical
physics
unit-dimension

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What happens to the image distance in the eye when we increase the distance of an object from the eye?

Asked in Physics by Ankit Kumar | 4 Views

physics

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A person wishes to make up as many different parties as he can out of his 20 friends such that each party consists of the same number of persons. The number of friends he should invite at a time is

Asked in Mathematics by Ankit Kumar | 3 Views

cute
math
bca

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