Venus is the _______ planet from the Sun.
1). 2nd
2). 4th
3). 6th
4). 8th
1. The group of solar cells joined together in a definite pattern is called a
2. Quality of transmission depends upon
3. Total number of colours exists in sunlight
5. What is the unit of the physical quantity, Electrical conductance?
8. The instrument that measures and records the relative humidity of air is