Question

why photons don't have mass?​

Answer 1

Answer:

aise hi.. swag hai.. just kidding

they have wave particle duality and thus yaha de broglie use hota hai

Explanation:

de broglie said every particle behave as wave

hv=hc/lambda

also hiesenberg said its impossible to take out momentum and position of particle

hence they exhibit mass and massless behaviour at the same time