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Define the term accommodation. How defects in accommodation be corrected?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Under what conditions will a converging lens form a real image that is the same size as the object?

asked Oct 19, 2017 in Physics by shamroz (41.5k points)

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1 answer 181 views

Explain that noise is a nuisance.

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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What types of waves do not require any material medium for their propagation?

asked Oct 16, 2017 in Physics by shamroz (41.5k points)

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1 answer 213 views

The result you have noted is only because of the carbon dioxide

asked Oct 16, 2017 in English by sonia (36.5k points)

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1 answer 93 views

What is optical fibres?

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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1 answer 130 views

Why a concave mirror is used for makeup or shaving?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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Why we take the principal focus of a concave mirror as real and a convex mirror as virtual?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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What is meant by the terms nearsightedness and farsightedness. How these defects can be corrected?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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1 answer 90 views

Mention the magnifying powers of the following optical instruments

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Give the balanced equation for the hydrolysis of sucrose.

asked Sep 21, 2017 in Chemistry by shamroz (41.5k points)

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1 answer 85 views

How does a slide projector or movie projector work? Explain.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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1 answer 83 views

Write the construction and working of a camera.

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Explain the image formation with ray diagram, when the object is placed at F (focal point) of a convex lens.

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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1 answer 119 views

Define spherical mirrors. What are its types?

asked Oct 17, 2017 in Physics by shamroz (41.5k points)

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1 answer 166 views

On which factor speed of water waves depends?

asked Oct 16, 2017 in Physics by sonia (36.5k points)

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1 answer 78 views

In which direction the light bends when it enters from one medium to another?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Explain the image formation with ray diagram, when the object is placed between the convex lens and F.

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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Describe the use and working of endoscope.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Describe some uses of lenses.

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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