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Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
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Observe the following figure which bulb get fuse?
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Choose and write the correct option.
If we gradually increase the angle of incidence of a ray of light passing through prism then …..
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Explain the following temperature vs time graph.
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Write proper answer in the box:
If `"F" = ("G""m"_1"m"_2)/"d"^2` then F = ______
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By considering first correlation complete the second correlation:
Hubble telescope: 569 km high from the earth surface
Revolving orbit of Hubble telescope: ______
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Water expands on reducing its temperature below ______°C.
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Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?
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Explain the following temperature Vs. time graph:
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What is meant by space debris?
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Match the column ‘A’ with column ‘B’.
Column ‘A’
|
Column ‘B’ |
(1) Eka - boron
|
(a) Germanium
|
(2) Eka - Aluminium
|
(b) Scandium
|
(3) Eka - Silicon
|
(c) Gallium |
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Choose the correct alternative and rewrite the following:
What will happen to the current passing through a resistance, if the potential difference across it is doubled and the resistance is halved?
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The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
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Explain how the formation of a rainbow occurs.
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State whether the following statement is true or false:
Magnetic poles exist in pairs.
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A charged particle is in motion having initial velocity `vecv` when it enters into a region of uniform magnetic field perpendicular to `vecv`. Because of the magnetic force the kinetic energy of the particle will ______.
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An electron is moving with a speed of 3.2 × 107 m/s in a magnetic field of 6.00 × 10-4 T perpendicular to its path. What will be the radium of the path? What will be frequency and the energy in keV?
[Given: mass of electron = 9.1 × 10−31 kg, charge e = 1.6 × 10−19 C, 1 eV = 1.6 × 10−19 J]
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Elements belonging to the same group have the same valency.
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A _______ is necessary to change the speed as well as the direction of motion of an object.
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