Physics · JEE

Important Questions: Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers for JEE

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Q1PhysicsUnit 16: Optics

Two convex lenses have focal lengths 10

\mathrm{cm}

and

40 \mathrm{cm} .

If a telescope has to be made by using these two lenses 1. The distance between the lenses should be

50 \mathrm{cm}

2. The distance between the lenses should be

30 \mathrm{cm}

3. The magnifying power of this telescope will be 5 4. An inverted image will be produced in this telescope Which two of the give are correct?

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