Question

all matter -macroscopic and microscopic when move at a high velocity must also emit a radiation of a fixed wavelength dependent on its mass.

Explanation:

Matter in motion (like macroscopic objects at high speed or microscopic particles) doesn't necessarily emit radiation of a fixed wavelength dependent on mass. For example, macroscopic objects moving at high velocity (like a fast - moving car) don't emit such radiation as described. The idea of matter emitting radiation based on mass and velocity in this fixed - wavelength way is incorrect.

Answer:

False