_______________ is known as the father of Indian Nuclear Physics.

Arrange the following milestones in the field of Indian Space Programme in chronological order:

A. Mars Orbiter Mission onboard (Mangalyaan)

B. National Remote Sensing Agency established (NRSA)

C. Vikram Sarabhai Space Centre established (VSSC)

D. Chandrayan - I launched

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Match List-I with List-II

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Match the LIST-I with LIST-II

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Match the List I with List II

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Which of the following are the general properties of the "Ionic compounds"?

(A) Generally brittle and break into pieces when pressure is applied.

(B) Have high melting and boiling points.

(C) Conduct electricity in the molten state.

(D) Generally soluble in solvents like kerosene and petrol but insoluble in water.

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In the formula "W = Fs cos $\theta$", the angle between force and displacement ($\theta$) is equal to 90$\degree$, the net work done will be: