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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

The stem juice of the plant shown here is used to make _________.


ARubber
BGum
CSugar
DCooking oil

The graph given below depicts a neutralization reaction. The pH of a solution changes as we add excess of acid to an alkali.

Which letter denotes the area of the graph where both acid and salt are present?

AP
BQ
CR
DS

Read the given statements and select the option that correctly identifies them as true (T) and false (F) ones.
(i) Pepsin is an enzyme secreted in stomach to digest proteins.
(ii) Bile helps in digesting proteins by breaking them into tiny particles.
(iii) A small rounded mass of chewed food at the moment of swallowing is called bolus.
(iv) Pancreas releases its secretions into the small intestine.