Magnetic Effects of Electric Current — Science STD 10 — Question

State whether the following statement is true or false:
A diverging mirror is used as a rear-view mirror.

Both concave and convex mirror send the reflected light at the same angle as the angle of incidence on the other side of the principal axis. [True/ False]

The nature of increase/decrease in resistivity of a metal and insulator are the same. [True/ False]

State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current will be parallel straight lines.

State whether the following statement is true or false:
A student says that we can see an object because light from our eyes is reflected back by the object

State whether the following statement is true or false:
The planets twinkle at night due to atmospheric refraction of light.

State whether the following statement is true or false:
The planets twinkle at night due to atmospheric refraction of light.

When resistors are connected in series, the sum of the currents in them is the current drawn from cell. [True/ False]

One can identify the nature of a mirror from the nature of the image it forms. [True/ False]

Convex mirror and convex lens always form virtual image. [True/ False]