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There are 200 questions in a 3 h examination. Among 200 questions, 50 are from Mathematics, 100 are from GK and 50 are from Science. Ram spent twice as much time on each Mathematics question as for each other question. How many minutes did he spend on Mathematics questions ?

A fort is at the top of a hill of height h above the sea-level.Prove that the greatest horizontal distance from which a gun in the ship can hit the fort is 2sqrt(k(k-h)) where sqrt(2gk) is the muzzle velocity.

0.05 kg steam at 373K and 0.45kg of ice at 253K are mixed in an insultated vessel. Find the equilibrium temperature of the mixture. Given, L_(fusion)=80cal//g=336J//g, L_(vaporization)=540 cal//g=2268J//g,C_(ice)=2100J//KgK=0.5calg//gK and S_(water)=4200J//KgK=1cal//gK

Find the entropy increment of an aluminium bar of mass m = 3.0 kg on its heating from the temperature T_1 = 300 K up to T_2 = 600 K if in this temperature interval the specific heat capacity of aluminimum varies as c = a + bT , where a = 0.77 J//(g.K), b = 0.46 mJ//(g. k^2) .

What is the function of a polysome? (Gk. Poly = many, Soma= body).

The National Insignia (राष्ट्रीय प्रतीक चिन्ह)|Current Affairs & Static GK - Practice Set (Questions-प्रश्न)|OMR

In the following figure, seg DH bot seg EF and seg GK bot seg EF. If DH = 6 cm, GK = 10 cm and A(Delta DEF) = 150 cm^(2) , then find : i. EF ii. A(Delta GEF) iii. A( square DFGE).