The total weight of 5 glass bowls is 500 g. What is the weight of one glass bowl?
The refractive index of glass for light going from air to glass is 32. Glass to air will be :
(a) 23
(b) 45
(c) 46
(d) 52
A WOOEN BLOCK OF WEIGHT 10N IS AT REST ON A GALSS SURFACE. WHAT IS THE FORCE OF FRICTION BETWEEN THE BLOCK AND THE GLASS SURFACE?