Question
Which phenomenon does a hologram use to create an
image?Solution
Holography relies on the diffraction of light to produce three-dimensional images. This technique involves recording the light field, typically using laser light, to capture and reconstruct the image.
What is the work done when a force of 10 N moves an object by 5 m in the direction of the force? Â
Which of the following pair regarding sound is correct?
I. Loudness – depends on amplitude
II. Shrillness – depends on frequency
A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is –
A uniform wire is bent into a circle and a battery is connected across a chord that subtends an angle of 60° at the center. What is the ratio of curren...
The Mohs scale is used to measure:
The group velocity of matter waves associated with a moving particle is:
When white light passes through a glass prism, which color deviates the least?
What is the density of an object with mass 500 g and volume 250 cm³? Â
Which of the following is not a nuclear reaction?
Two cars A and B are running at velocities of 60km per hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both ar...
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