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Q) Which of the following do not belong to the solar system
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Q) Central core of atom is called
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Q) The color of infrared images that represent forests is:
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Q) Which must be true for metamorphism to occur?
Explanation:
Metamorphism is the change of minerals or geologic texture in pre-existing rocks, without the protolith melting into liquid magma. The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.
The parent rock must be in solid form. Tons of pressure must be applied for metamorphism to happen. The process must take place underground.
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Q) Consider the metals 1. Platinum 2. Gold 3. Copper 4. Lead Their correct order in the ascending order of density is
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Q) There is no Doppler effect for sound when
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Q) Consider the following electromagnetic waves 1. Ultraviolet 2. Microwaves 3. X-rays 4. Radio waves Their correct arrangement in the ascending order of wavelength is
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Q) Which of the following is used as a lubricant in heavy machines?
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Q) Which of the following laws is associated with the heating effect of electric current ?
Explanation:
Joule's law is associated with the heating effect of electric current. It is a way to find the amount of heat produced by electric current. H=I2Rt is the relation used to calculate heat generated
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Q) The value of acceleration due to gravity ‘g’ depends on: 1. Constant of Gravitation ‘G’ 2. Mass of the earth ‘M’ 3. Mass of the falling object ‘m’ 4. Radius of the earth ‘R’ ?
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