131. In a right-angled triangle, the length of a base is 4cm and the length of the perpendicular is 3cm. The length of the hypotenuse is?
A. 5cm
B. 25cm
C. 50cm
D. 75cm
132. Inertia depends upon?
A. Force
B. Net Force
C. Mass
D. Velocity
133. The number of significant figures in 100.8 s is?
A. 2
B. 3
C. 4
D. 5
134. Mass of the earth is?
A. 6×10²⁴ g
B. 6×10²⁵ g
C. 6×10²² g
D. 6×10²⁷ g
135. Number of perpendicular components of a force is?
A. 1
B. 2
C. 3
D. 4
136. What is the unit of momentum?
A. Nm
B. Kg ms⁻²
C. NS
D. NS⁻¹
137. The number of basic units in SI is?
A. 3
B. 5
C. 7
D. 9
138. What is true between centre of gravity and center of mass?
A. They are always at the same point
B. Focus of gravity changes as one disappears from the earth yet focal point of mass remaining parts same
C. Centre of mass changes but center of gravity is always same
D. None of them
139. Which of these statements is not correct?
A. Snapshot of idleness is free of shape and size of the body
B. Snapshot of idleness relies upon selection of tomahawks
C. Snapshot of idleness doesn’t rely upon mass of body
D. None of these
140. The angular momentum of a system of particles is not conserved:
A. When net external force is acting upon the system
B. At the point when a net outside force is following up on the framework
C. When a net external impulse is acting upon the system
D. None of these
Admin