Everyday Science MCQs

Long-sight defect could be corrected by using __________ lens?

1. concave
2. Convex
3. diverging
4. none of these

Short-sight defect could be corrected by a _____________ lens?

1. concave
2. Convex
3. diverging
4. none of these

Deficiency of Vitamin-A results in __________?

1. Night blindness
2. rickets
3. scurvy
4. hair fall

For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________?

1. also decrease
2. increase
3. remains constant
4. none of these

The lifespan of Red Blood Cells is __________ days?

1. 60
2. 120
3. 180
4. 240