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Earn 100
Which one of the following is the purpose of using the lycopodium powder in the experiment to find the refractive index of glass?
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Important Questions on Experiments Related to Optics
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Three observations were taken to find the refractive index of the material of glass slab. The reading for the mark on the paper , The reading on the mark of the paper with slab , and the reading for lycopodium powder . Which of the following will be the correct formula for finding the refractive index?
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A student took the following three readings with a travelling microscope to find the refractive index of the material of the glass slab: (R1), (R2) , and (R3) but forgot to put them in the appropriate columns of the observation table. Which one of the following is the correct statement about the readings taken by him?
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There are small divisions within on the main scale and divisions on the vernier scale coincide with divisions on the main scale. While taking the readings a student found the mark of the main scale just before the zero of the vernier scale and division of the vernier scale coinciding with a division on the scale. Which one of the following is the correct reading to be noted in the observation table?
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Which of the following is a common observation for calculating the real thickness and apparent thickness of a glass slab using a travelling microscope?
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The layer of the lycopodium powder on the upper surface of the slab is thick. What is the possible change in the readings when finding the refractive index of the glass material using a travelling microscope?
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Which one of the following steps is wrong when finding the refractive index of glass using a travelling microscope?
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Which of the following is the primary apparatus used in the Half-Deflection Method to find galvanometer resistance?
HARD
A battery with emf and resistance is used to deflect the galvanometer by angle , allowing one to determine the resistance of the device using the half deflection method. The equation links , and , where is shunt of resistance required to obtain half deflection will be
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A graph is plotted for a convex lens of focal length . What will be the values of and corresponding to the point of intersection of the hyperbola with the bisector of the angle between the X-axis and the Y-axis?
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The graph between and is drawn for various positions of the object in front of a convex lens. The focal length of the lens will be
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Observations are to be taken to plot a graph for the convex lens. Which of the following options is correct for the position of the object needle?
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Why is it important to make sure the optical bench's center line and the mirror's major axis are parallel when determining v values for various values of u and the focal length in the case of a concave mirror?
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A vs graph is drawn for a convex lens. If the point Z is the intersection point of the angle bisector of the angle between the two axes and the hyperbola, then what will be the measure of the focal length of the lens?
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A student has taken observations for finding the focal length of a convex lens for four positions of the objects in the range to . What is the maximum number of points that he can plot to draw the graph?
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What is the shape of the graph plotted for a convex lens?
