Dentists use Concave mirror to view enlarged images of teeth. These mirrors curve inwards and have the ability to create magnified, upright virtual images when an object is placed within a certain distance (focal point).
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishAn electron possesses a negative charge of:
How many electrons taken together make one coulomb?
One ohm is equal to:
The kinetic energy of an object is derived using which of the following equations of motion?
A ball of mass 50 grams is moving with a velocity of 15 m/s. What is its kinetic energy?
An object is placed 15 cm in front of a convex lens of focal length 25 cm. The image distance will be
What is the process in which metals are extracted from their ores by heating beyond the melting point?
Who established the wave nature of particles?
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