There velocities will be different cuz velocity is a vector quantity ( depends on magnitude as well direction). Here same magnitude but different direction. So answer is velocity.
Answer:
refractive index of plastic is 1.42
Explanation:
When light ray enters from one medium to other medium then due to transition of light it bends away or towards the normal, this phenomenon is known as refraction of light
So here we know that
here we have
now we have
Answer:
In an open pipe, the length of the pipe contains half of a wavelength, so a sound of wavelength 4m will be produced.
340 / 4 is 85, so the harmonic frequency will be 85 hz
Explanation:
Answer: I dont understand
Explanation:
Answer:
A
Explanation:
A virtual image is on the same side as the object, which by convention is drawn on the left side. So -di would represent a virtual image.
