Life Processes — Science STD 10 — Question

If an object is at a considerable distance (or infinity) in front of a convex lens, where is the image formed?

Name the rule for finding the direction of magnetic field produced by a straight currentcarrying conducloj.

Name the device which converts mechanical energy into electric energy.

Two non-metals combine with by the sharing of electrons to form a compound X.
State whether X will have a high melting point or low melting point.

Is electric current a scalar or vector quantity? Sate the smaller unit of current.

Name that part of a box-type solar cooker which allows the sun’s heat rays to enter the box but does not allow inside heat to go out.

A nuclear power plant is working normally. What would you do if the reactor core suddenly got too hot?

One wants to see a magnified image of an object in a mirror. What type of mirror should one use?

Give the constituents and one use of brass.