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Physics Past Questions and Answers

Physics Past Questions


Question 4796:


Which of the following is NOT a force?

A. Friction
B. Tension
C. Upthrust
D. Weight
E. Impulse


Question 4797:


Two masses 40 g and 60 g respectively, are attached firmly to the ends of a light metre rule. The centre of gravity of the system is ____________

A. At the mid-point of the metre rule
B. 40 cm from the lighter mass
C. 40 cm from the heavier mass
D. 60 cm from the heavier mass indeterminate because the metre-rule is light


Question 4798:


A 0.05 kg bullet travelling at 200 ms horizontal strike; a thick vertical wall a load of mass 10 kg is suspended on the rule at L, the 10 cm mark. If the rule is kept in equilibrium by a string p, fixed at p and attached to the rule at R, the 20 cm mark, then the tension T In the string is ____________

A. 25 N
B. 50 N
C. 250 N
D. 5000 N.
E. 25000 N


Question 4799:


A force of ICON stretches an elastic string to a total length of 20 cm. If an additional force of ICON stretches the string 5 cm further, find the natural length of the string.

A. 15 cm
B. 12 cm
C. 10 cm
D. 8 cm
E. 5 cm


Question 4800:


Two drivers G and H are at depths
20 m and 40 m respectively below the water surface in a lake. The pressure on G is'P. while the pressure on H is P2. If the atmospheric pressure is equivalent to 10 m of water, the value of P/P1 is ____________

A. 0.50
B. 0.60
C. 1.67
D. 2.00
E. 3.00






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