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CHETANA PUBLICATION-MAS03-EXERCISE
- What is dye?
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- Match the columns:
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- Bats can navigate in dark.
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- Give reasons, (any 2) Methane is used as a domestics fuel.
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- Give scientific reasons: Bleaching powder has the odour of chlorine.
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- Give the uses of Coal.
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- If you hear the thunder 20 seconds after you see the flash of lightnin...
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- An object 10 cm in height is placed at a distance of 36 cm from a conc...
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- The speed of sound in air at 0^@C is 332 m//s. If it increases at the ...
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- Give structural formula and electron dot model of methane.
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- What is an echo? What factors are important to get a distinct echo?
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- Write a short note on biogas plant. (3) Give the properties and uses o...
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- Explain the sign conventions for reflection by spherical mirrors
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- Hydrogen gas is filled in two identical bottles, A and B, at the same ...
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- Explain the following SCImical reactions with the help of a balanced e...
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- Explain the following SCImical reactions with the help of a balanced e...
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- Write the properties and uses of Teflon.
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- Draw ray diagram for object at infinity for a concave mirror.
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- Write in short note on SONAR?
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- With the help of a neat labelled diagram, explain the laboratory prepa...
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