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Physics

Physics
Radiocarbon dating technique is used to estimate the age of

monuments
soil
rocks
fossils

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Physics
Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?

-11.25 diopters
11.25 diopters
3.75 diopters
-3.75 diopters

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Physics
Two stones of different masses are dropped simultaneously from the top of a building

Depends on the composition of the stone
Both the stones reach the ground at the same time
Larger stone reaches the ground earlier
Smaller stone reaches the ground earlier

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Physics
Which of the following statements is true when we see ''rainbow' ?

We face sun and raindrops
The sky remains clear and the sun is at lower position in the sky
The Sun remains behind us and we face raindrops
In light rainfall, we face Sun

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Physics
Which of the metals has the maximum thermal conductivity?

Silver
Iron
Copper
Aluminium

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Physics
What is the SI unit of intensity of sound?

Heartz
Newton
Decibel
Tesla

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