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What will be the shape of shadow formed on the wall when magnets L and K are placed between the light source and the wall as shown here?


A
B
C
D

Read the following steps (i → iv) of obtaining cotton fabric given in a random order. Arrange them in a proper sequence and select the correct option.
(i) The cotton fibres are twisted to form yarn.
(ii) Cotton is usually hand-picked from cotton bolls.
(iii) Fibres are separated from the seeds by combing.
(iv) Weaving of fabrics from yarn is carried out on machines.

A(i) → (ii) → (iii) → (iv)
B(ii) → (iii) → (i) → (iv)
C(iii) → (ii) → (iv) → (i)
D(ii) → (iii) → (iv) → (i)

The given diagram shows the transport of gases in our body. Which parts of the body are represented by the letters W, X and Y, respectively?

W-------X-------Y

AAll body parts---Heart---Lungs
BHeart---All body parts---Lungs
CLungs---All body parts---Heart
DAll body parts---Lungs---Heart

A ball is rolling down a slope at a steady speed. Which of the following statements is correct?

A Frictional force is greater than the forward force.
B There is an unbalanced force downwards.
C There are no forces acting on the ball.
D The forces acting on the ball are balanced.

Which of the following is a correct match of the everyday object and the simple machine involved in its functioning?

ASteering of a car - Pulley
BEscalator - Wedge
CStaircase - Inclined plane
DHospital ramp - Wheel and axle

Read the given conversation.



Which of the these statements is correct?

AX is ruby and Z is tungsten.
BY is granite and Z is quartz.
CX is diamond and Y is silica.
DY is graphite and Z is tungsten.

A convex mirror of radius of curvature R produces an image (1 / 2N + 1)^th of the size of the object. The distance of the image from the mirror is

ANR
B2 NR
CNR / (2N+1)
DNR / 2(2N+1)

Given below is a list of few harmful effects on humans.
(i) Cancer
(ii) Cataract in eyes
(iii) Lowering of body's resistance to diseases
(iv) Increased mortality of developing embryo
Which of these are caused due to ozone depletion?

A(i) and (iii) only
B(ii) and (iv) only
C(iii) and (iv) only
D(i), (ii), (iii) and (iv)

A boy of mass 50 kg runs up a flight of 120 stairs, each measuring a height of 25 cm, in one minute and 40 seconds. If g = 10 m s^-2, the power of the boy is

A 150 W
B 750 W
C 500 W
D 250 W

Refer to the given figures showing seeds/fruits ofthree different plants.

Select the option which contains plants that can replace X, Y and Z, respectively based on the mode of dispersal of their seeds.

AX - Lotus; Y - Beans; Z - Calotropis
BX - Castor; Y - Coconut; Z - Acer
CX - Hiptage; Y - Balsam; Z - Cocklebur
DX - Mango; Y - Cotton; Z - Maize