Question

Why the comet are visible only when they come near the sun

Answer 1

We can only see comets when they have visible tails and commas when they are near the sun...

Answer 2

hey dear

here is your answer

we can see number of comet by naked eye when it comes near to the sun because their comas and tails reflect sunlight or even glow

The energy absorbed from the sun

do you know most comets are too small they could not seen by naked even they are not seen by telescope

hope it helps