Thew energy stored in a capacitor of capacitance
and voltage between the plates
is
.
Substituting numerical value

I think it is c I'm only in 7th grade but I'm pretty sure that the answer is c
Answer:
15.32°
Explanation:
We have given the wavelength 
Diffraction grating is 1460 lines per cm
So
(as 1 m=100 cm )
For maximum diffraction
here m is order of diffraction
So 


Answer:
A block device is a computer data storage device that supports reading and (optionally) writing data in fixed-size blocks, sectors, or clusters. These blocks are generally 512 bytes or a multiple thereof in size