Subject :NSO Class : Class 7
Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
The volume of the stone is equal to the volume of the water increased in the measuring cylinder.
The volume of the stone is calculated from the formula Volume =Mass/Density.
In this case, the Mass = 12 g and Density = 3g cm^3
Volume = 12/3 = 4 cm^3
The actual volume of liquid in the measuring cylinder is
20cm^3
.
So, the increase in volume will show a new reading of
20cm3+4cm3=24cm^3
hence...answer is (B)
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 6
Nisha and Neha were playing together on a street where they accidentally collided with each other and fell down. After that, Neha started feeling pain in her elbow and could not bent it easily. Nisha also developed discomfort in one of her wrists and had difficulty in writing. They visited doctor who told them that their joints were injured. Identify their injured joints and select the correct option regarding them.
| Nisha | Neha | |
|---|---|---|
| A | Injured joint is the type of joint also present between metacarpal and carpal of thumb. | Injured joint is the type of joint also present between skull and first vertebra of backbone. |
| B | Injured joint is the type of joint also present between upper arm and forearm. | Injured joint is the most freely movable joint of body. |
| C | Injured joint is the type of joint also present between tarsal bones. | Injured joint allows movement primarily in one plane. |
| D | None of these |
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Subject :NSO Class : Class 6
Ans 1:
Class : Class 6
who says that printer produces sound energy. laser printers dont make any sort of sound. and if you dont agree than see this, oven produces sound and not only that, but, almost all machines produce sound.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 3
is a source of _________.
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Subject :NSO Class : Class 6
Ans 2: (Master Answer)
Class : Class 1
D
When the key K is closed, an electric current starts flowing in the circuit . The current which passes through bulb P gets divided in bulbs Q and R. For the identical bulbs , the brightness will depend upon the current flowing through the bulbs,So P will glow brighter than Q and R .
Ans 3:
Class : Class 10
the current starts flowing from positive end to negative end in a closed circuit and in this case , current first gets divided and passes through Q and R and then the current again gets add up and passes through p. so due to the greater flow of current through P it is more brighter.
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Subject :NSO Class : Class 6
Look at the Venn diagram. Which of the following objects described below are most likely to be I, II and III? Choose the correct option.
| I | II | III | |
| A | Oiled paper | Air | Cellophane paper |
| B | Glass | Frosted glass | Wood |
| C | Wax paper | Clean water | Diamond |
| D | Mirror | Diamond | Lamp |
Ans 1: (Master Answer)
Class : Class 1
B
Transparent objects allow the light to pass through it completely , while the translucent passes the light partially .
An object is categorised as opaque if it completely blocks the light falling on it.
Hence, B is the correct option.
