The friction experienced by a body, when in motion, is known as
Adv.
Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.
coefficient of restitution for elastic bodies is one.
The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection
The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.
Unit of thermal conductivity in M.K.S. units is (a) kcal/kg m2 °C (b) kcal-m/hr m2 °C (c) kcal/hr m2 °C (d) kcal-m/hr °C (e) kcal-m/m2 °C.
Thermal conductivity of non-metallic amorphous solids with decrease in temperature (a) increases (b) decreases (c) remains constant (d) may increase or decrease depending on temperature (e) unpredictable.
When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by (a) conduction (b) convection (c) radiation (d) conduction and convection (e) convection and radiation.
डायमण्ड बैकमोथ" कीट है ?
(A) मटर का
(B) टमाटर का
(C) फूलगोभी का
(D) लौकी का
ऊतक-क्षय शब्दावली संकेत करती है ?
(A) कोशिकाओं के मृत होने को
(B) अंगमारिता
(C) कुंचन
(D) क्षीणता
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