Question

If the potential difference across a wire is 2 V and the current through the wire
is 1 A, the electric power is
1
1
(A) 4W
(B)
W
2
(D) 4 W
If temperature of water is lowered from 4°C to 3°C, its volume
(A) increases
(B) decreases (C) remains the same (D) fluctuate
When a ray of light travels from air to glass and strikes the surface of separation at
90°, then it
Wat bends towards the normal
(B) bends away from th​

Answer 1

Answer:

1 - 2w

2- volume increases

3- bend towards the normal