Question

Q-1 (a) Fill in the blanks with appropriate answer.
(1) A
shows only the outline of the object.
(2) A device used to open or close an electric circuit is called
(3) Shadows are formed when light rays are obstructed by
(4) Electric current flows only if the circuit is
(5) The part of an electric bulb that glows is called the
objects.​

Answer 1

Answer:

2. Switch.

3. Opaque objects.

4. Complete or close.

5. Filament.