Answer:
2 hrs 45 minutes
Explanation:
You have to minus one hr because of tome change
The shades are very different
Answer:

Explanation:
Here two charges are placed at distance "d" apart
now the net value of electric field at some position between two charges will be ZERO
so we will have
electric field due to charge 1 = electric field due to charge 2

Let the position where net field is zero will lie at distance "r" from q1

now we will have

now square root both sides

now we have

so we have

If you mean like electromagnetic waves then, Mico waves, UV rays, and infrared waves