User Forum

Dravya observed a waxing Gibbous Moon in the night sky of 15^th February. Which of the following phases of Moon must have appeared on 8^th February (X) and 22^nd February (Y)?

A
B
C
D

If a person wants to see an enlarged image of the object by using a convex lens then the lens must be held

A Close to the object so that the object lies within the focal length of the lens
B Far from the object so that the object lies beyond 2F
C At infinity
D Far from the object so that the object lies at 2F.

Select the seed which gets dispersed by the same agent as seed X.


A
B
C
D

The circuit has been set up by Advi.

Which of the following pairs of switches has to be closed in order to attain the brightest light?

AX and Y
BU and V
CY and U
DX and V

In the given picture, the girl ‘a’ is putting more efforts to pull the sack bag as compared to the girl ‘b’. Girl ‘a’ has to work more against a force which also ______________.


A Changes the direction of a moving object
B Causes all objects to fall to the ground
C Prevents us from slipping when we walk
D Makes a stationary object to move

Tarun carried out an experiment to compare the rate of evaporation of water. He used four different containers P, Q, R and S. He put 50 mL of water into each container and placed them at the same place. The temperature of water in all the containers was the same. After 5 hours, he observed the amount of water in each container and recorded his results in a table as shown below.

Which container has the least exposed surface?

AP
BQ
CR
DS

The diagrammatic representation shows the pulmonary and systemic circulations. Identify the parts labelled as a, b, c, and d and select the correct option.

Select the option which has kharif crops only.

ARice, Bajra, Pea
BMaize, Jowar, Bajra
CBean, Apple, Orange
DRadish, Cauliflower, Maize

Which of the following statements about Spongilla, leech, dolphin and penguin is correct?

A Penguin is homoiothermic while the remaining three are poikilothermic.
B Leech is found in fresh water form while all others are marine.
C Spongilla has special collared cells called choanocytes, not found in the remaining three.
D All are bilaterally symmetrical.

A few properties are listed as
I. Poor conductors of heat
II. High density
III. Lustrous
IV. Transparent
V. Low melting point
VI. Strong
Properties generally associated with plastics are

AI and VI only
BII and III only
CI, II and V only
DI, IV and VI only.