Question

The area of cross section of press plunger of a hydraulic press is 2
What is the audible range of frequency for humans. (2) SONAR make use of wave. (1)
4 (a) Give an example of motion of a body in which average speed is not zero but average velocity is zero. (3) (b) Which among following is a scalar or vector. (2)
(i) Work (ii) Pressure (iii) Distance (iv) Velocity
(c) The velocity of a car is 36km/hr. Express it in m/s. (2) (d) Give one difference between distance and displacement. (3)
SECTION B Attempt any four
5 (a) State Newton II law of Motion. (2) (b) What are the conditions for applicability of II Law. (2) (c) Why cricketer lower his hand while catching a ball. (3)
(c)
(d) Define Time period of a Wave. Give its relation with frequency of
4m . It is required to overcome resistive load of 400kgf on it. Calculate the force required on the pump plunger if the area cross section of plunger is 0.01m2

Answer 1

Answer:

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