Class 12th

To begin with, you can prepare for CLAT simultaneously as Class 12 if have a smart and consistent approach:

• Start early – Beginning of Class 12 to manage both studies.
• Daily Time – 2-3 hours you spend for CLAT preparation each day.
• Sections covered – English, Current Affairs, Legal Reasoning, Logical Reasoning and Quantitative Techniques.
• Read daily newspapers like The Hindu or Indian Express.
• Keep taking mock tests to gain more speed and accuracy.
• Refresh weekly to reinforce soft spots.

Good material to refer from- either CLAT books or online test series and if necessary coaching.

Gauss Law is only concerned with the total enclosed charge that finally tells us the total flux. The charges outside may change field patterns. They not affect the total flux. It's actually incorrect to assume the field due to the external charges should also affect the flux through the Gaussian surface. 

Gauss Law does not directly give the electric field in all cases. It can only be used in calculations for symmetrical surfaces: spherical, cylindrical, or planar. 

The integral form of Gauss Law is considered as an indirect form and only in theory. It will still create a mathematical problem. The Gaussian surface passing through a discrete charge means it lies on the surface. Half of the electric flux is outside and half in. Not on the boundary. And we know Gauss' Law holds true only when there are closed surfaces. 

Photoelectric current intensity

3n = 2n + 2

n = 2

P=I/C for non-reflecting surface.