Answer :
Final answer:
The 100W bulb will glow brighter than the 60W bulb when connected in parallel to a 220V mains due to consuming more power, which makes it emit more light.
Explanation:
If we have two bulbs marked as 60W, 220V and 100W, 220V and these are connected in parallel to a 220V mains, the question is which bulb will glow brighter? The brightness of a bulb is determined by its power rating, not voltage. Power is the rate at which energy is consumed or transferred. Here, the 100W bulb with the same voltage as the 60W one will consume more energy, and thus, will glow brighter.
To help you in understanding this, consider that light bulbs are essentially resistors that heat up when current flows through them and they get so hot that they emit visible light. In this case, the two bulbs have different amounts of power. The 100-W bulb will be brighter because it uses more power to generate more light, despite having the same voltage as the 60-W bulb.
Learn more about bulb brightness here:
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