Related Questions

If the side of a square decreases by 30%, then the area of the square decreases by :
A 14%
B 21%
C 49%
D 51%
Assume that the price of product Y decreases by 5% and the quantity supplied decreases by 2%. The coefficient of price elasticity of supply for product Y is:
A Negative and therefore Y is an inferior product.
B Less than one and therefore supply is-inelastic
C More than-one and therefore supply is elastic,
D Negative & supply curve is download slopping.
কোন এক পার্কের একটি দোলনায় ঝুলতে লোহার তার ব্যবহার করা হয়েছে। কয়েকজন ছেলে-মেয়ে দোলনায় যখন দোল খাচ্ছিল তখন এক বাচ্চার অভিভাবক লক্ষ্য করেন যে, ফুলন তার 1 m থেকে বৃদ্ধি পেয়ে 1.01 m হয়েছে এবং তারটির ব্যাস হ্রাস পেয়েছে। পয়সনের অনুপাত 0.2 হলে দোলনার তারের ব্যাস কতখানি হ্রাস পায় ? (The iron wires have been used in a park to swing. When some children are swinging, the length of the wire increases from I m to 1.01 m whereas the diameter of the wire decreases which is noticed by a guardian. If Poisson's ratio is 0.2, then how much the diameter of the wire decreases?) 
A 0.15%
B 0.18%
C 2.5%
D 0.25%
E 0.2%
A system is said to be at equilibrium, if the entropy of the system has reached __________ value.
A Minimum
B Zero
C Maximum
D None of these
Entropy change for an irreversible process taking system and surrounding together is
A 0
B > 0
C None of these
For spontaneous changes in an isolated system (S = entropy)
A Ds = 0
B Ds
C Ds > 0
D Ds = Constant
The increase in entropy of a system represents
A Increase in availability of energy
B Increase in temperature
C Decrease in pressure
D Degradation of energy
Increase in the entropy of a system represents the
A Degradation of energy
B Decrease in system pressure
C Increase in the availability of energy
D Increase in the temperature
Entropy is a measure of the __________ of a system.
A Disorder
B Orderly behaviour
C Temperature changes only
D None of these
Entropy, which is a measure of the disorder of a system is
A Independent of pressure
B Independent of temperature
C Zero at absolute zero temperature for a perfect crystalline substance
D All of the above

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