# Can blue light encounter slower clock time over red?

I am aware that matter with mass experiences dilation and photon is massless. there is no inertial frame where photon is at rest. However, wave form of light has momentum and energy. Blue light wave has higher energy and shorter wavelength than red light. So, in specific time, blue light will have more oscillation cycles than red light.

can we say blue light has slower clock time than red light due to short wavelength and higher energy? (my assumption: blue light covers short distance before cycle repeats so if it's clock run slow then c maintains constancy. opposite applies for the case of red light)

• In special relativity, one cannot have slower clock time. You have to mention slower w.r.t. whom? Someone's own clock cannot be slower( Proper time). And immediately you see the problem. – Ari Nov 25 '15 at 5:03
• How about w.r.t. each other? is it possible? – James Nov 25 '15 at 5:09
• No. Because to get a time dilation you require the two frames to move in different velocities, which is impossible for light as all frequencies move in same velocity. – Ari Nov 25 '15 at 5:12
• You are asking whether the blue light's clock runs slower (as measured in some frame) than the red light's clock. But light does not have a clock. – WillO Nov 25 '15 at 5:23
• anything with energy should be subjected to time dilation, shouldn't it? – James Nov 25 '15 at 5:39