User Forum

Study the given table.

Select the correct option for (i), (ii), (iii) and (iv).

Count the number of triangles in the given figure.


A43
B46
C42
DNone of these

Arrange the following in the order of increasing mass. (Atomic mass of O = 16 u, Cu = 63 u, N = 14 u)
I. one atom of oxygen
II. one atom of nitrogen
III. 1 × 10^-10 mole of oxygen gas
IV. 1 × 10^-10 mole of copper

AII < I < III < IV
BI < II < III < IV
CIII < II < IV < I
DIV < II < III < I

Why is Diwali celebrated ?

AOn this day Lord Rama married Sita.
BTo mark the return of Lord Rama to Ayodhya after an exile of fourteen years.
COn this day Lord Rama killed Ravana.
DIt is the birthday of Lord Rama.

Refer to the given classification chart.
Which of the following has been grouped INCORRECTLY?


AVein
BLung
CLiver
DHeart

Find the correct mirror image of Fig.(X), if the mirror is placed vertically to the right.



A

B

C

D

Two forces of equal magnitude F act on two isolated bodies P and Q as shown in the figure. The mass of body Q is three times that of body P. The magnitude of the acceleration of P is


AThree times that of Q
B(1/3) that of Q
CNine times that of Q
D(1/9) that of Q.

A fire can be made by rubbing two objects together such as rubbing two pieces of rock having rough surfaces. Which of the following statements explain why a fire can be made by rubbing two objects together?
(i) Friction slows down moving objects.
(ii) Fire gives out heat and light energy.
(iii) Friction produces heat.
(iv) Fire has no mass.

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

Which of the following vehicles runs on diesel or petrol?

A
B
C
DAll of these

Sonia noted weight of a child, fruits, flour bag and ketchup bottle as follows :

Arrange them in ascending order of mass.

Ad → b → c → a
Bb → c → d → a
Ca → c → b → d
Da → c → b → d