Related Questions

'Virtue is knowledge and Education is the main thing to acquire virtue' কার উক্তি?
A এরিষ্টটল
B ম্যাকাইভার
C প্লেটো
D রুজভেল্ট
A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
A The sum of the two masses is equal to the total mass of body
B The center of gravity of the two masses coincides with that of the body
C The sum of mass moment of inertia of the masses about their center of gravity is equal to the mass moment of inertia of the body
D All of the above
The rainfall due to upward movement of air caused by convergence of cold air masses against warm air masses is called ________.
A Cyclonic rainfall
B Orographic rainfall
C Frontal rainfall
D Convectional rainfall
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation
A Is directly proportional to their velocity of approach
B Is inversely proportional to their velocity of approach
C Bears a constant ratio to their velocity of approach
D Is equal to the sum of their velocities of approach
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
A Equal to
B Equal and opposite to
C Less than
D Greater than
Insolation heats up the land masses more quickly than the water bodies because ________
A Water is liquid
B Landmasses are solid
C Water needs more energy to get warm
D Rocks are bad conductors of heat
The phenomenon of collision of two elastic bodies takes place because bodies
A Immediately after collision come momentarily to rest
B Tend to compress each other till they are compressed maximum possible
C Attempt to regain its original shape due to their elasticities
D All the above
If a force acts upon two objects at rest, and having different masses for the same amount of time, then which one of the following will be the same for both the objects?
A Acceleration
B Kinetic Energy
C Velocity
D Momentum
m এবং 2m ভরের দুটি আয়তাকার বাক্স একটি ঘর্ষণহীন অনুভূমিক পৃষ্ঠে একটি দড়ি দ্বারা সংযুক্ত। F মাত্রার একটি সম্মুখ বল দ্বারা ভারী বাক্সটিকে ডানদিকে টানা হচ্ছে। ফলে, হালকা বাক্সটি দড়ি দ্বারা টান অনুভব করে। দড়িটিতে টান কত? (Two rectangular boxes of masses m and 2m are on a frictionless horizontal surface and connected by a rope. A forward force of magnitude F is pulling the more massive box toward right. As a result, the less massive box is pulled by the rope. What is the tension in the rope?)
A F
B F/6
C F/3
D F/2
The property by virtue of which a liquid opposes relative motion between its different layers is called
A Surface tension
B Coefficient of viscosity
C Viscosity
D Osmosis

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