SAT (Stage-1) M...

The total current supplied to the battery is

By using only two resistance coils, in series or in parallel, one should be able to obtain resistances of 3, 4, 12 and 16 ohms. The separate resistances of the coils are:

Two copper wires of lengths I and 2l have radii r and 2r, respectively. What is ratio of their specific resistances?

A fish views obliquely, from under water, a fisherman who is standing on the bank of a lake. How will the man appear to that fish?

Two electric bulbs rated P₁ watt V volt, and P₂ watt V volt are connected in parallel, and applied across V volt. The total power will be

A person is suffering from eye defect whose near point is 50 cm. What is the power of the lens required to correct this defect?

An eye specialist prescribes spectacles having a combination of a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. The power of this lens' combination is

When a ray of light enters a glass slab from air,

Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror and parallel to the second is reflected from the second mirror parallel to the first mirror. The angle between the two mirrors is

When three identical bulbs of 60 W, 200 V rating are connected in series to a 200 V supply, the power drawn by them will be

Velocity of light in diamond, glass and water decreases in which of the following orders?

For a metallic wire, the ratio  (V = applied potential difference and I = current flowing)

The following question has four choices, out of which ONLY ONE is correct.

A proton is projected horizontally eastwards in a uniform magnetic field which is horizontal and southwards in direction. The proton will be deflected

The chemical reaction between barium hydroxide and ammonium chloride to form barium chloride, ammonia and water is a/an _____.

Raw material(s) required for the preparation of soaps is/are