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A convex lens is used in which of the following devices?
When a wave passes from one medium to another and bends, this phenomenon is known as:
A. Refraction
B. Reflection
C. Diffraction
D. Interference
Answer: Refraction
Subjects: Oscillations and Waves, Physics
The principle stating that the temperature of a gas is directly proportional to its volume at constant pressure is known as:
A. Charles' law
B. Boyle's law
C. Dalton's law
D. Avogadro's law
Answer: Charles' law
Subjects: Thermal Physics, Physics
What is the heat required to raise the temperature of 1 gram of water by 1°C called?
The property that measures how much a material changes its shape under applied forces is called:
A. Strain
B. Stress
C. Elastic modulus
D. Shear modulus
Answer: Strain
Subjects: Properties of Bulk Matter, Physics
The gravitational potential energy of an object at height h above the Earth’s surface is given by:
If two objects of different masses collide elastically, which of the following is true about their velocities after the collision?
A. The relative velocity remains the same
B. The relative velocity changes
C. The velocity of each object is the same
D. The velocity of the more massive object increases
Answer: The relative velocity remains the same
Subjects: Linear Momentum and Collisions, Physics
The energy possessed by an object due to its motion is called:
A. Kinetic energy
B. Potential energy
C. Elastic energy
D. Thermal energy
Answer: Kinetic energy
Subjects: Work, Energy, and Power, Physics