Everyday Science

In a railway track, two rails are joined end to end with a gap tin between them because?

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Rectified spirit contains alcohol about ?

Options:

• A. 80%
• B. 95%
• C. 70%
• D. 85%

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B. 95%

Sensitive layer of the eye is?

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• A. Choriods
• B. Sclerotic
• C. Retina
• D. Cornea

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C. Retina

Max Planck received the noble prize in Physics in 1918 for his discovery of ?

Options:

• A. electron
• B. energy quanta
• C. photon
• D. positron

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B. energy quanta

In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?

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Twinkling of stars is caused by ?

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Name the famous book of Ibn-Sina in which he discussed human physiology and medicine ?

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Which of the following elements is not present abundantly in earth

Options:

• A. Silicon
• B. Radium
• C. Aluminum
• D. Carbon

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B. Radium

Laughing gas has chemical composition of following two elements ?

Options:

• A. Nitrogen + Hydrogen
• B. Nitrogen + Carbon
• C. Nitrogen + Oxygen
• D. Oxygen + Carbon

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C. Nitrogen + Oxygen

Bronze medal is made up of metals ?

Options:

• A. copper,nickel
• B. copper, tin
• C. copper, silver
• D. copper, zinc

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B. copper, tin