Physics-
General
Easy
Question
If momentum is increased by 20%, then kinetic energy increases by
- 48%
- 44%
- 40%
- 36%
The correct answer is: 44%
Related Questions to study
Physics-
A spring gun of spring constant 90 is compressed 12 cm by a ball of mass 16 g. If the trigger is pulled, the velocity of the ball is
A spring gun of spring constant 90 is compressed 12 cm by a ball of mass 16 g. If the trigger is pulled, the velocity of the ball is
Physics-General
Physics-
The minimum velocity (in ) with which a car driver must traverse a flat curve of radius 150 m and coefficient of friction 0.6 to avoid skidding is
The minimum velocity (in ) with which a car driver must traverse a flat curve of radius 150 m and coefficient of friction 0.6 to avoid skidding is
Physics-General
Biology
Read the two reaction A and B given below and select the correct option accordingly
A) ADP + Pi ATP
B) ATP ADP + Pi
Therefore the correct option is choice 1
Read the two reaction A and B given below and select the correct option accordingly
A) ADP + Pi ATP
B) ATP ADP + Pi
BiologyGeneral
Therefore the correct option is choice 1
Physics-
A parallel plate capacitor of area A, plate separation d and capacitance is filled with three different dielectric materials having dielectric constants as shown. If a single dieletric material is to be used to have the same capacitance is this capacitors, then its dielectric constant is given by
A parallel plate capacitor of area A, plate separation d and capacitance is filled with three different dielectric materials having dielectric constants as shown. If a single dieletric material is to be used to have the same capacitance is this capacitors, then its dielectric constant is given by
Physics-General
Physics-
A body weight 8 g when placed in one pan and 18 g when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty. The true weight of the body is
A body weight 8 g when placed in one pan and 18 g when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty. The true weight of the body is
Physics-General
Physics-
If a body of mass is carried by a lift moving with an upward acceleration , then the forces acting on the body are (i) the reaction on the floor of the lift upwards (ii) the weight of the body acting vertically downwards. The equation of motion will be given by
If a body of mass is carried by a lift moving with an upward acceleration , then the forces acting on the body are (i) the reaction on the floor of the lift upwards (ii) the weight of the body acting vertically downwards. The equation of motion will be given by
Physics-General
Maths-
The equation of motion of a particle moving along a straight line is , where the units of s and t are cm and sec. The acceleration of the particle will be zero after
The equation of motion of a particle moving along a straight line is , where the units of s and t are cm and sec. The acceleration of the particle will be zero after
Maths-General
Chemistry-
Assertion : First law of thermodynamics is not adequate in predicting the direction of a process
Reason : Total energy of universe is constant.
Assertion : First law of thermodynamics is not adequate in predicting the direction of a process
Reason : Total energy of universe is constant.
Chemistry-General
biology
Which one of the following pairs is mismatched?
Which one of the following pairs is mismatched?
biologyGeneral
botany
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
Statement 1: Libriformfibres are true fibres.
Statement 2: Libriformfibres develop from non-functional tracheids by reduction.
botanyGeneral
botany
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
Statement 1: In collateral vascular bundles, the phloem is situated towards inner side.
Statement 2:In monocot stem, cambium is present.
botanyGeneral
botany
Statement 1: Many organs of aquatic plants float in water.
Statement 2: Large air gaps are present in the collenchyma tissues of lotus leaf.
Statement 1: Many organs of aquatic plants float in water.
Statement 2: Large air gaps are present in the collenchyma tissues of lotus leaf.
botanyGeneral
botany
Statement 1: Apical and intercalary meristems contribute to the growth in length while the lateral meristems bring an increase in girth in maize.
Statement 2: Apical and intercalary meristems always increase the height of plants.
Statement 1: Apical and intercalary meristems contribute to the growth in length while the lateral meristems bring an increase in girth in maize.
Statement 2: Apical and intercalary meristems always increase the height of plants.
botanyGeneral
botany
Statement 1: All the endodermal cells of the root do not contain Casparian thickenings on their radial and transverse walls.
Statement 2: Passage cells are found in the root endodermis.
Statement 1: All the endodermal cells of the root do not contain Casparian thickenings on their radial and transverse walls.
Statement 2: Passage cells are found in the root endodermis.
botanyGeneral
botany
Statement 1: The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials.
Statement 2: The cells of the inactive region of the quiescent centre become active when the previous active initials get damaged.
Statement 1: The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a permanent source of active initials.
Statement 2: The cells of the inactive region of the quiescent centre become active when the previous active initials get damaged.
botanyGeneral