Physics-
General
Easy
Question
The displacement vector is represented by
The correct answer is:
Related Questions to study
Physics-
A simple pendulum of time period 2 sec the length of pendulum is
A simple pendulum of time period 2 sec the length of pendulum is
Physics-General
Physics-
An echo will be heard if the minimum distance between the source of sound and the obstacle is
An echo will be heard if the minimum distance between the source of sound and the obstacle is
Physics-General
Maths-
The coefficient of xn in the expansion of 
is
The coefficient of xn in the expansion of is
Maths-General
Maths-
Coefficient of x5 in the expansion of (1 + x2)5(1 + x)4 is
Coefficient of x5 in the expansion of (1 + x2)5(1 + x)4 is
Maths-General
Maths-
Number of terms in (1 +x)101 (1 + x2 –x)100 is
Number of terms in (1 +x)101 (1 + x2 –x)100 is
Maths-General
Maths-
The number of ways in which a mixed double game can be arranged amongst nine married couples so that no husband and his wife play in the same game, is equal to:
The number of ways in which a mixed double game can be arranged amongst nine married couples so that no husband and his wife play in the same game, is equal to:
Maths-General
Maths-
There are ‘n’ numbered seats around a round table. Total number of ways in which 
persons can sit around the round table, is equal to:
There are ‘n’ numbered seats around a round table. Total number of ways in which persons can sit around the round table, is equal to:
Maths-General
Chemistry-
(A) An exothermic process, non-spontaneous at high temperature, may become spontaneous at low tempemture.
(R) With decrease in temperature, randomness (entropy) decrease.
(A) An exothermic process, non-spontaneous at high temperature, may become spontaneous at low tempemture.
(R) With decrease in temperature, randomness (entropy) decrease.
Chemistry-General
Physics-
Nature of sound wave is
Nature of sound wave is
Physics-General
Chemistry-
(A) Pressure, volume and temperature are all extensive properties
(R) Extensive properttes depend upon the amount and nature of the substance
(A) Pressure, volume and temperature are all extensive properties
(R) Extensive properttes depend upon the amount and nature of the substance
Chemistry-General
Chemistry-
(A) Heat of neutralization of perchloric acid, HCI04, with NaOH is same as that of HCl with NaOH
(R) Both HCI and HCI04 are strong acids
(A) Heat of neutralization of perchloric acid, HCI04, with NaOH is same as that of HCl with NaOH
(R) Both HCI and HCI04 are strong acids
Chemistry-General
Chemistry-
(A) Enthalpy of graphite is lower than that of diamond
(R) Entropy of graphite is lower than that of diamond
(A) Enthalpy of graphite is lower than that of diamond
(R) Entropy of graphite is lower than that of diamond
Chemistry-General
Chemistry-
(A) Efficiency of a reversible engine is 100% (maximum) when the temperature of sink is - 273°C.
(R) Efficiency of engine, 
(A) Efficiency of a reversible engine is 100% (maximum) when the temperature of sink is - 273°C.
(R) Efficiency of engine,
Chemistry-General
Chemistry-
The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C increases the temperature of 18.94 kg of water by 0.632°CIf the specific 'heat of water at25°e is 0.998 calg-1deg-I ,the value of heat of combustion of benzoic acid is:
The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at 25°C increases the temperature of 18.94 kg of water by 0.632°CIf the specific 'heat of water at25°e is 0.998 calg-1deg-I ,the value of heat of combustion of benzoic acid is:
Chemistry-General
Chemistry-
The enthalpy of solution of BaCl2 (s) and BaC12 2HzCXs) are -20.6 and 8.8 kJ mol-I, respectively. The enthalpy change for the reaction is:
The enthalpy of solution of BaCl2 (s) and BaC12 2HzCXs) are -20.6 and 8.8 kJ mol-I, respectively. The enthalpy change for the reaction is:
Chemistry-General
