Question

D. With proper reasoning choose the odd one out.
1. A moving bus, a boy running, a strong wind, a bird on a tre
2. Joule, erg, Wh, watt.
jocele
3. Electric bulb, room heater, washing machine, photocell.
4. A dry cell, fireworks, automobiles, microphone​

Answer 1

1) a bird on tree

2) watt

3) room heater

4) fireworks

reason 1 -

because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy

reason 2 -

watt is unit of power and other are unit of energy

reason 3-

other options produce electrical energy and the room heater produce heat energy

reason 4 -

a dry cell produce chemical energy, fireworks produce light energy, heat energy and sound energy automobiles produce kinetic energy and chemical energy and microphone produce electric energy

Hope it helps

Answer 2

Explanation:

1) a bird on tree

1) a bird on tree 2) watt

1) a bird on tree 2) watt3) photocell

4) firework

reason 1 -

reason 1 -because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy

reason 1 -because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy reason 2 -

reason 1 -because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy reason 2 - watt is unit of power and other are unit of energy

reason 1 -because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy reason 2 - watt is unit of power and other are unit of energyreason 3-

reason 1 -because first two options are kinetic energy as the a strong wind is mechanical energy and it also include kinetic energy reason 2 - watt is unit of power and other are unit of energyreason 3- other options converts electrical energy into other forms of energy while photocell converts light energy into electrical energy

ergy reason 4 -

As the other three produces only one energy while firework produces different types of energy like - heat , light , sound energy

Hope it helps