Q-1 A stone dropped from on Aeroplane in an example of

(a) Projectile

(b) Range

(c) Momentum

(d) None

Q-2 y = kx2 is eq. of

(a) Parabola

(b) Ellipse

(c) Hyperbola

(d) None

Q-3 What is the path followed by projectile ?

(a) Elliptical

(b) Parabolic

(c) Hyperbolic

(d) None

Q-4 At q = 900, the value of R is, Here R in Horizontal Range

(a) 1

(b) 0

(c) 2

(d) 3

Q-5 Sin (1800 – 3x) =?

(a) Sin 2x

(b) Sin 3x

(c) Sin 4x

(d) – Sin 3x

Q-6 When angle is 900, then value of time of flight is

(a) 2a/g

(b) 2b/g

(c) 2u/g

(d) None

Q-7 When a body slide from the inclined blame the value of acceleration is

(a) g

(b) Sin Ө

(c) – g sin Ө

(d) 0

Q-8 When a particle is projected from earth with velocity V0, then what will be its horizontal components of velocity.

(a) V0 Cos Ө

(b) V0 Sin Ө

(c) V Cos Ө

(d) None

Q-9 What is max. horizontal Range?

(a) 4h

(b) 5h

(c) 9h

(d) 10h

Q-10 Path followed by the projectile during it flight is ------

(a) Trajectory

(b) Horizontal Range

(c) Momentum

(d) None

Q-11 At What pt. in its path does a stone have zero speed?

(a) At ground

(b) At highest pt.

(c) a & b

(d) None

Q-12 At which angle a stone should be projected, so that it have max. horizontal Range

(a) 600

(b) 900

(c) 450

(d) None

Q-13 What is unit of Ө?

(a) Radian

(b) Steradian

(c) Rods-1

(d) None

Q-14 In w = Ө/t, w is

(a) Angular Displacement

(b) Angular Speed

(c) Time

(d) None

Q-15 In circular motion the relation S = V0t can be written on

(a) Ө = V0t

(b) Ө0 = Vt

(c) Ө = w0t

(d) None

Q-16 What is unit of angular acceleration.

(a) Radian s-2

(b) Radian s-3

(c) Radian s-4

(d) None

Q-17 What happen to angular acceleration if velocity is constant?

(a) 0

(b) 1

(c) 2

(d) 9

Q-18 In circular motion, V = V0 + at can be written as?

(a) w = w2 + at

(b) w = w0 + at

(c) w2 = w + at

(d) None

Q-19 T = 1/ ?

(a) n

(b) n2

(c) n3

(d) None

Q-20 Angular velocity is

(a) Axial vector

(b) Rotational vector

(c) Co-initial vector

(d) None

Q-21 In Ө = l/r, l is

(a) Radius

(b) Arc

(c) Angle

(d) None

Q-22 Lt Δy/Δt =?

Δt ®0

(a) dy/dt

(b) d2y/dt2

(c) Δy/Δt

(d) None

Q-23 When V = 1205 rpm. Here rpm stands for

(a) Round per minute

(b) Revolution per minute

(c) Revolver per minute

(d) None

Q-24 A stone is thrown vertically upward with velocity 10ms-1 which make an angle of 600 with horizontal, find Time of flight.

(a) Ö3

(b) Ö5

(c) Ö41

(d) Ö92

Q-25 The fly wheel of a generator makes 360 revolution in one minute. Find its angular velocity.

(a) 130π rad S-1

(b) 120 π rad S-1

(c) 125 π rad S-1

(d) None

Answers:

1(a) Projectile

2(a) Parabola

3(b) Parabolic

4(b) 0

5(b) Sin 3x

6(c) 2u/g

7(b) Sin Ө

8(a) V0 Cos Ө

9(a) 4h

10(a) Trajectory

11(b) At highest pt.

12(c) 450

13(a) Radian

14(b) Angular Speed

15(c) Ө = w0t

16(a) Radian S-2

17(a) 0

18(b) w = w0 + at

19(a) V

20(a) Axial vector

21(b) Arc

22(a) dy/dt

23(b) Revolution per minute

24(a) Ö3

25(b) 120 π rad S-1

Reason

24 Here we use

T = 2V0 Sin d /g

2(10) Sin 600 / 9.8

2(10) Ö3/9.8 = 10 Ö3/9.8 = 5 Ö3/4.9

25 V = 360 revolution per minute

= 360/60 = 60 rotation per second

Since W = 2 π V = 2π(60) = 120 π red /S

## Saturday, March 28, 2009

### Physics 4

Q-1 A stone dropped from on Aeroplane in an example of

(a) Projectile

(b) Range

(c) Momentum

(d) None

Q-2 y = kx2 is eq. of

(a) Parabola

(b) Ellipse

(c) Hyperbola

(d) None

Q-3 What is the path followed by projectile ?

(a) Elliptical

(b) Parabolic

(c) Hyperbolic

(d) None

Q-4 At q = 900, the value of R is, Here R in Horizontal Range

(a) 1

(b) 0

(c) 2

(d) 3

Q-5 Sin (1800 – 3x) =?

(a) Sin 2x

(b) Sin 3x

(c) Sin 4x

(d) – Sin 3x

Q-6 When angle is 900, then value of time of flight is

(a) 2a/g

(b) 2b/g

(c) 2u/g

(d) None

Q-7 When a body slide from the inclined blame the value of acceleration is

(a) g

(b) Sin Ө

(c) – g sin Ө

(d) 0

Q-8 When a particle is projected from earth with velocity V0, then what will be its horizontal components of velocity.

(a) V0 Cos Ө

(b) V0 Sin Ө

(c) V Cos Ө

(d) None

Q-9 What is max. horizontal Range?

(a) 4h

(b) 5h

(c) 9h

(d) 10h

Q-10 Path followed by the projectile during it flight is ------

(a) Trajectory

(b) Horizontal Range

(c) Momentum

(d) None

Q-11 At What pt. in its path does a stone have zero speed?

(a) At ground

(b) At highest pt.

(c) a & b

(d) None

Q-12 At which angle a stone should be projected, so that it have max. horizontal Range

(a) 600

(b) 900

(c) 450

(d) None

Q-13 What is unit of Ө?

(a) Radian

(b) Steradian

(c) Rods-1

(d) None

Q-14 In w = Ө/t, w is

(a) Angular Displacement

(b) Angular Speed

(c) Time

(d) None

Q-15 In circular motion the relation S = V0t can be written on

(a) Ө = V0t

(b) Ө0 = Vt

(c) Ө = w0t

(d) None

Q-16 What is unit of angular acceleration.

(a) Radian s-2

(b) Radian s-3

(c) Radian s-4

(d) None

Q-17 What happen to angular acceleration if velocity is constant?

(a) 0

(b) 1

(c) 2

(d) 9

Q-18 In circular motion, V = V0 + at can be written as?

(a) w = w2 + at

(b) w = w0 + at

(c) w2 = w + at

(d) None

Q-19 T = 1/ ?

(a) n

(b) n2

(c) n3

(d) None

Q-20 Angular velocity is

(a) Axial vector

(b) Rotational vector

(c) Co-initial vector

(d) None

Q-21 In Ө = l/r, l is

(a) Radius

(b) Arc

(c) Angle

(d) None

Q-22 Lt Δy/Δt =?

Δt ®0

(a) dy/dt

(b) d2y/dt2

(c) Δy/Δt

(d) None

Q-23 When V = 1205 rpm. Here rpm stands for

(a) Round per minute

(b) Revolution per minute

(c) Revolver per minute

(d) None

Q-24 A stone is thrown vertically upward with velocity 10ms-1 which make an angle of 600 with horizontal, find Time of flight.

(a) Ö3

(b) Ö5

(c) Ö41

(d) Ö92

Q-25 The fly wheel of a generator makes 360 revolution in one minute. Find its angular velocity.

(a) 130π rad S-1

(b) 120 π rad S-1

(c) 125 π rad S-1

(d) None

Answers:

1(a) Projectile

2(a) Parabola

3(b) Parabolic

4(b) 0

5(b) Sin 3x

6(c) 2u/g

7(b) Sin Ө

8(a) V0 Cos Ө

9(a) 4h

10(a) Trajectory

11(b) At highest pt.

12(c) 450

13(a) Radian

14(b) Angular Speed

15(c) Ө = w0t

16(a) Radian S-2

17(a) 0

18(b) w = w0 + at

19(a) V

20(a) Axial vector

21(b) Arc

22(a) dy/dt

23(b) Revolution per minute

24(a) Ö3

25(b) 120 π rad S-1

Reason

24 Here we use

T = 2V0 Sin d /g

2(10) Sin 600 / 9.8

2(10) Ö3/9.8 = 10 Ö3/9.8 = 5 Ö3/4.9

25 V = 360 revolution per minute

= 360/60 = 60 rotation per second

Since W = 2 π V = 2π(60) = 120 π red /S

(a) Projectile

(b) Range

(c) Momentum

(d) None

Q-2 y = kx2 is eq. of

(a) Parabola

(b) Ellipse

(c) Hyperbola

(d) None

Q-3 What is the path followed by projectile ?

(a) Elliptical

(b) Parabolic

(c) Hyperbolic

(d) None

Q-4 At q = 900, the value of R is, Here R in Horizontal Range

(a) 1

(b) 0

(c) 2

(d) 3

Q-5 Sin (1800 – 3x) =?

(a) Sin 2x

(b) Sin 3x

(c) Sin 4x

(d) – Sin 3x

Q-6 When angle is 900, then value of time of flight is

(a) 2a/g

(b) 2b/g

(c) 2u/g

(d) None

Q-7 When a body slide from the inclined blame the value of acceleration is

(a) g

(b) Sin Ө

(c) – g sin Ө

(d) 0

Q-8 When a particle is projected from earth with velocity V0, then what will be its horizontal components of velocity.

(a) V0 Cos Ө

(b) V0 Sin Ө

(c) V Cos Ө

(d) None

Q-9 What is max. horizontal Range?

(a) 4h

(b) 5h

(c) 9h

(d) 10h

Q-10 Path followed by the projectile during it flight is ------

(a) Trajectory

(b) Horizontal Range

(c) Momentum

(d) None

Q-11 At What pt. in its path does a stone have zero speed?

(a) At ground

(b) At highest pt.

(c) a & b

(d) None

Q-12 At which angle a stone should be projected, so that it have max. horizontal Range

(a) 600

(b) 900

(c) 450

(d) None

Q-13 What is unit of Ө?

(a) Radian

(b) Steradian

(c) Rods-1

(d) None

Q-14 In w = Ө/t, w is

(a) Angular Displacement

(b) Angular Speed

(c) Time

(d) None

Q-15 In circular motion the relation S = V0t can be written on

(a) Ө = V0t

(b) Ө0 = Vt

(c) Ө = w0t

(d) None

Q-16 What is unit of angular acceleration.

(a) Radian s-2

(b) Radian s-3

(c) Radian s-4

(d) None

Q-17 What happen to angular acceleration if velocity is constant?

(a) 0

(b) 1

(c) 2

(d) 9

Q-18 In circular motion, V = V0 + at can be written as?

(a) w = w2 + at

(b) w = w0 + at

(c) w2 = w + at

(d) None

Q-19 T = 1/ ?

(a) n

(b) n2

(c) n3

(d) None

Q-20 Angular velocity is

(a) Axial vector

(b) Rotational vector

(c) Co-initial vector

(d) None

Q-21 In Ө = l/r, l is

(a) Radius

(b) Arc

(c) Angle

(d) None

Q-22 Lt Δy/Δt =?

Δt ®0

(a) dy/dt

(b) d2y/dt2

(c) Δy/Δt

(d) None

Q-23 When V = 1205 rpm. Here rpm stands for

(a) Round per minute

(b) Revolution per minute

(c) Revolver per minute

(d) None

Q-24 A stone is thrown vertically upward with velocity 10ms-1 which make an angle of 600 with horizontal, find Time of flight.

(a) Ö3

(b) Ö5

(c) Ö41

(d) Ö92

Q-25 The fly wheel of a generator makes 360 revolution in one minute. Find its angular velocity.

(a) 130π rad S-1

(b) 120 π rad S-1

(c) 125 π rad S-1

(d) None

Answers:

1(a) Projectile

2(a) Parabola

3(b) Parabolic

4(b) 0

5(b) Sin 3x

6(c) 2u/g

7(b) Sin Ө

8(a) V0 Cos Ө

9(a) 4h

10(a) Trajectory

11(b) At highest pt.

12(c) 450

13(a) Radian

14(b) Angular Speed

15(c) Ө = w0t

16(a) Radian S-2

17(a) 0

18(b) w = w0 + at

19(a) V

20(a) Axial vector

21(b) Arc

22(a) dy/dt

23(b) Revolution per minute

24(a) Ö3

25(b) 120 π rad S-1

Reason

24 Here we use

T = 2V0 Sin d /g

2(10) Sin 600 / 9.8

2(10) Ö3/9.8 = 10 Ö3/9.8 = 5 Ö3/4.9

25 V = 360 revolution per minute

= 360/60 = 60 rotation per second

Since W = 2 π V = 2π(60) = 120 π red /S

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