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When an ideal simple pendulum oscillates between the extreme points P and Q, there is continuous (i) of potential energy and kinetic energy. The potential energy depends on the choice of (ii) . Force acting on the bob of the pendulum is maximum at (iii), and minimum at (iv).

Ali, Ben and Cate, each held the handle of different sauce-pans. Ali held a wooden handle, Ben held a metal handle and Cate held a plastic handle. The teacher told them to heat the sauce-pans holding the handles. Who will let go off the handle first ?

AAli
BBen
CCate
DNone of these

Reeta puts two different objects in each of the following containers.
Containers. (i) : Copper coin and iron nail
Container (ii) : Steel nail and aluminium earring
Container (iii) : Marble and gold coin
Container (iv) : Nickel coin and steel nail
She can use a magnet to separate the objects in containers __________ .

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

The tissue shown here is _______.


A Simple squamous epithelial tissue
B Striated muscle tissue
C Areolar tissue
D Ciliated columnar epithelial tissue

Consider the following statements (a - d) each with one or two blanks.
I. In our body, _(1)_ is the longest cell while _(2)_ is the smallest cell.
II. Cell membrane in animal cells is _(3)_
III. Mitochondria is absent in _(4)_
IV. _(5)_ are membraneless organelles of cell and are involved in synthesis of _(6)_
Select the correct option to fill any three or four blanks.

A1 - Neuron, 2 - PPLO , 4 - bacteria
B3 - Permeable , 5 - Ribosomes, 6 - proteins
C3 - Selectively permeable , 1 - Neuron, 2 - RBC
D3 - Impermeable , 4 - human RBCs , 6 - lipids

What is correct about the given plant?



AThis plant gives us shade.
BThis plant have strong and woody stem.
CThis plant have sharp and pointed thorns.
DThis plant grows along the ground.

Identify the incorrect statement from the following.

AInterparticle distance is more in helium than in gold.
BNitrogen has no definite shape as well as no definite volume.
CMercury is lighter than water.
DPotassium is a reactive metal.

Read the given statements and select the correct option.
Statement 1 : All food chains are linked; if any one food chain is disturbed, it affects other food chains.
Statement 2 : In a food chain, energy and nutrients are passed on from one organism to another.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DStatement 1 is false and statement 2 is true.

There are 8 friends A, B, C, D, E, F, G and H seated in a circle facing the centre. AC, DG, HE and FB are seated adjacent to each other. A is also seated adjacent to H. B is second to the right of H. E is third to the right of C.
What is C's position with reference to F?

A5^th to the right
B4^th to the left
C4^th to the right
D3^th to the right

Metal pots are often made shiny on surface outside especially on the top and side and that makes sense thermally because this ______.

AConducts heat better
BRadiates less energy out from the pot
CLowers the loss due to conduction
DAppreciably decreases convection losses