depolw
A. 2 B. 1 C.2/π D.1/π E.1/2
- An arc PQ subtends an angle of 120° at the centre of a circle of radius 1 cm. The length of
arc PQ is
A. 120 cm B. 60 cm C. π/6cm D. 2π/3cm E.π^2/18 cm - If the central angle of a circle of radius 14 cm cuts off an arc of length 28 cm , then the radian
measure of the angle is
Sets - The set A = { x\ x2 – 7x + 12 =0 } is
A.{ 3 , 4 } B. { -3 , 4 } C.{ 3 , -4 } D.{ -3 , -4 } E. None of them
2.The element(s) of A ={ (x,y)\ x+y=8 where x and y are positive integers and x≥ y} is- (1,3) 2.(4,4) 3. (5,3)
A.1 only B. 2 only C.3 only D.1 and 2 only E.2 and 3 only
) The SI unit for force is ……….. .
(8) Mass is a measure of ………. .
(9) The attracting force of the earth acting on a body is defined as ……… .
(10) Weight is a …….. quantity.
(11) One newton is equal to ……. dyne.
- (1,3) 2.(4,4) 3. (5,3)
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