User Forum

If the time taken by the bob of a pendulum to move from point Y to W is 2 s, then the time taken by it to complete two oscillations is _____.


A8 s
B12 s
C16 s
D4 s

Refer to the given word grid. Which of the following is not hidden here.


APhenomenon where moon is completely hidden by the shadow of Earth.
BConstellation that resembles a hunter.
CAn Indian astronomer who explained that Earth is round.
DName of first Indian to go into space.

Which of the following options shows the correct mirror-image of given Fig. (X)?


A
B
C
D

Which of the following is hidden in the given word grid?


AA herb from which paper is made.
BA climber that gives bunches of tiny juicy fruits.
CA shrub that is used to make clothes.
DA water plant with big pink-coloured flowers.

In what way is the life cycle of a cockroach similar to the grasshopper?
(i) Both have three stages.
(ii) Their young ones look similar to adult.
(iii) Young ones of both of them are called nymph.
(iv) They moult a few times as they grow.

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

Which of the following is an INCORRECT match of modification of leaf and its example?

A – Spine
B – Food source
C – Threads to support climbing
D – Food source

A list of few plants is given in the box.
(i) Beans
(ii) Gram
(iii) Cuscuta
(iv) Wheat
(v) Rice
(vi) Lentil
(vii) Palm
How many of these are leguminous plants?

A 3
B 4
C 5
D 6

A car slides down on inclined surface WX and moves horizontally along XZ as shown in the figure. XY is a rough surface while WX and YZ are frictionless. The car moves with a constant speed on its path between which of the following two points?


A X and Y
B Y and Z
C W and X
D X and Z

Read the given passage.
In a flower, ____1_____ produces pollen grains. Pollen grains are deposited on ____2_____ of pistil. ____3_____ carries male gametes to the ovule. Fusion of male and female gametes is called ____4_____. After fertilisation, ____5_____ develops into fruit and ____6_____ develops into seed. Select the correct option which fills the blanks with atleast three correct answers.

A2 - Style, 4 - Fertilisation, 5 - Ovary
B1 - Anther, 3 - Pollen tube, 6 - Ovule
C2 - Stigma, 3 - Filament, 5 - Ovary
D1 - Anther, 2 - Stigma, 4 - Pollination

About ____________of Earth's surface is covered with water.

A³⁄₄^th
B²⁄₃^rd
C¹⁄₅^th
D¹⁄₄^th