Deficiency of Vitamin-D results in
A. night blindness
B. rickets
C. scurvy
D. hair fall
A. night blindness
B. rickets
C. scurvy
D. hair fall
The SI unit of “pressure” is
A. pascal
B. joule
C. tesla
D. henry
A. pascal
B. joule
C. tesla
D. henry
The most densest substance on the Earth is
A. Platinum
B. Copper
C. Steel
D. Osmium
A. Platinum
B. Copper
C. Steel
D. Osmium
A camera uses a __________ to form an image.
A. convex lens
B. concave lens
C. condenser lens
D. none of these
A. convex lens
B. concave lens
C. condenser lens
D. none of these
Which from the following is NOT a conductor?
A. Aluminium
B. Silicon
C. Graphite
D. All are conductors
A. Aluminium
B. Silicon
C. Graphite
D. All are conductors