Subject :NSO Class : Class 10
Subject :NSO Class : Class 5
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Subject :NSO Class : Class 5
Read the given passage and fill the blanks with correct option.
1 is also called black gold. It is formed from the
remains of dead organisms in the sea. It cannot be used
in its natural state and is refined and turned into 2,
3, 4, etc.
1 | 2 | 3 | 4 | |
A | Coal | Peat | Lignite | Lubricants |
B | Petroleum | Lignite | Peat | Wax |
C | Coal | Bituminous | Anthracite | Kerosene |
D | Petroleum | Petrol | Diesel | Wax |
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 9
Ans 1:
Class : Class 9
Option D is the correct answer as the ratio between H1 H2 and H3 is 1: 3 : 5.
Ans 2:
Class : Class 9
yes, (a) is the right answer as due to accelaration by gravity, velocity of any freely falling object will increase continuously. So, (b) is wrong as h1, h2 and h3 are given equal, (c)is wrong too as it is given that covered distance decreases after every 5 seconds, and (d) is also wrong for the same reason.
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Subject :NSO Class : Class 9
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Subject :NSO Class : Class 9
Ans 1:
Class : Class 9
Volume of the solid cube =(25*25*25)/1000000 cubic metre.
Mass of the solid cube = the mass of the body which can be placed on it to completely submerge it
Density = 0.1kg/ 125*(10)^6=800kg/m^3
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Subject :NSO Class : Class 9