A. same
B. double
C. half
D. four times
E. one fourth
A. right angled triangle
B. equilateral triangle
C. square
D. circle
E. rectangle
A. density of metal can’t be determined
B. metal is twice as dense as water
C. metal will float in water
D. metal is twice as dense as unknown fluid
E. none of the above
A. ellipse
B. hyperbola
C. parabola
D. circle
E. none of the above
A. nature of surfaces
B. area of contact
C. shape of the surfaces
D. ail of the above.
E. A. and B. above
A. meet in a point
B. be all parallel
C. at least two of them must meet
D. all the above are correct
E. none of the above
A. equal to the moment of the couple
B. constant
C. both of above are correct
D. both of above are wrong
E. none of the above
A. same
B. more
C. less
D. may be less of more depending on nature of surfaces and velocity
E. has no correlation
A. more inclined when moving
B. less inclined when moving
C. more inclined when standing
D. less inclined when standing
E. none of the above
A. increase key length
B. increase key depth
C. increase key width
D. double all the dimensions
E. none of the above