Contrast image formation in reflectors and refractors

What will be an ideal response?


Reflectors use a curved mirror to reflect the light back to a focus, while refractors use a convex lens to bend the transmitted light to a focus.

Physics & Space Science

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If you lift a 35-N weight vertically 50 m above the ground, you are

a. doing work against gravity. b. doing work against friction. c. doing work against inertia. d. doing none of these.

Physics & Space Science

Which is the most massive star?

A. Star of 0.5 solar masses B. Coolest possible main sequence star C. Type B main sequence star D. Type G main sequence star E. Hottest possible main sequence star

Physics & Space Science

Which of the following is NOT one of the normal types of galaxies?

A) Normal spirals B) Barrel spirals C) Seyfert spirals D) Irregular type II E) Dwarf ellipticals

Physics & Space Science

When a car decelerates, its front end goes down. Explain

What will be an ideal response?

Physics & Space Science