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An object XY of length 4 cm is kept in front of a concave mirror of radius of curvature 10 cm as shown in the given figure. The mirror is placed in a medium of refractive index 1.5. Also consider the co-ordinate axis as shown.

Select the correct statement about the image formed by the mirror.

AThe separation between y-coordinates of image of ends X and Y is 2 cm.
BThe separation between y-coordinates of image of ends X and Y is
CThe separation between y-coordinates of image of ends X and Y is zero.
DThe image formed is parallel to the principle axis of mirror.

A government campaign was conducted in an agricultural area where sparrow population was exterminated as these birds were known to eat grains and decrease crop yield. However in the months that followed, grain production was severely reduced leading to famines in that area. Key Start of campaign of The given graph traces the population changes of one more species in that area after campaign. Which of the following best explains this?


A There was overgrowth of crops due to reduced sparrow population causing the crops to compete for available resources thereby leading to crop failure.
B The crash in sparrow population caused the population of locusts (which sparrows prey upon) to spike, which in turn wiped out available crops in field.
C Sparrows actually did not consume grains but instead consumed pests that feed on grains.
D None of these

Ravi and Rohan were cycling together on a street where they accidently collided with each other and fell down. After that, Rohan started feeling pain in his knee and could not bent it easily. Ravi also developed discomfort in one of his shoulders and had difficulty in moving his arm in a circle. They visited doctor who told them that one of their joints were injured. Identify their injured joints and select the correct option regarding them.

Four similar identical lamps are connected to a battery as shown in the diagram. Each lamp operates at normal brightness and the ammeter (of negligible resistance) registers a steady current. The filament of one of the lamps breaks. What happens to the ammeter reading and to the brightness of the remaining lamps?

Which of the following animals has large number of setae on its body?

A
B
C
D

The given figures show particles of the same matter. Which of them shows that the matter is coldest?

A
B
C
D

A stone is dropped from a certain height which can reach the ground in 5 seconds. If this stone is stopped after 3 seconds of its fall and is again released, then the total time taken by the stone to reach the ground will be (Take g = 10 m s^-2)

A6 s
B7 s
C8 s
D9 s

Match column I with column II and select the correct option.


Aa - (iii), b - (iv), c - (i), d - (ii)
Ba - (i), b - (iv), c - (iii), d - (ii)
Ca - (iii), b - (ii), c - (i), d - (iv)
Da - (i), b - (ii), c - (iii), d - (iv)

In which circuit the bulbs will glow more brightly? (The bulbs are identical in both the circuits.)


AIn circuit P only
BIn circuit Q only
CIn both the circuits P and Q, the bulbs will glow with equal brightness.
DData is insufficient.

Refer to the given flow chart and select the correct option regarding it.


A I could be undigested food in the form of faeces; II could be toxic waste like urine and III could be carbon dioxide rich air.
B Food pipe and windpipe are parts of organ system P, nose and lungs are parts of organ system R whereas intestine and kidneys are parts of organ system S.
C Heart and blood vessels are parts of organ system Q which is the main transporting system of human body.
D Both A and C