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If the radius of curvature of a concave mirror is 20 cm, then focal length of the mirror will be
If the radius of curvature of a concave mirror is 20 cm, then focal length of the mirror will be (a) 20…
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If the radius of curvature of a concave mirror is 20 cm, then focal length of the mirror will be (a) 20…
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The relation between molecular mass (M) and vapour density (D) of gaseous substance is (a) 2M=D (b) M=D2 (c) M=2.8D (d) M=2D
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The P – V graph of Boyle’s Law related to gas is
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Which layer of atmosphere has the greatest density? (a) Troposphere (b) Stratosphere (c) Mesosphere (d) Thermosphere
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At present the population of a village is P and if rate of increase of population per year be r%, after n…
Flash Note
Chapter : Light Board : WBBSE (Madhyamik) Class : X (10) Subject : Physical Science
Flash Note
Chapter : Light Board : WBBSE (Madhyamik) Class : X (10) Subject : Physical Science
Flash Note
Chapter : Thermal Phenomena Board : WBBSE (Madhyamik) Class : X (10) Subject : Physical Science
Flash Note
Chapter : Behaviour of Gases Board : WBBSE (Madhyamik) Class : X (10) Subject : Physical Science
Flash Note
Chapter : Concerns About Our Environment Board : WBBSE (Madhyamik) Class : X (10) Subject : Physical Science