With the help of a diagram explain

1). Solar Eclipse.

2). Lunar Eclipse

Solar eclipse is the eclipse of the sun. It happens when the moon comes in between the earth and the sun in a straight line. The sun is partially or completely blocked by the moon. Solar eclipse can occur during a new moon only.
 
Moon eclipse or lunar eclipse is the eclipse of the moon. It happens when the earth comes in between the sun and the moon in a straight line. The shadow of earth hides the moon. It can happen during a full moon phase only.
For diagrams, you can refer to the following link:
https://www.meritnation.com/ask-answer/question/a-lunar-eclipse-occurs-on-a-full-moon-day-while-a-solar-ecli/evs/6946228