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Browse 395 questions across 26 Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.
Start learning Uttarakhand Board Class 10 with Quill →Science topics
Light - Reflection and Refraction (57)Life Processes (44)Science (44)Our Environment (32)Chemical Reactions and Equations (30)Electricity (30)Carbon and its Compounds (29)Metals and Non-metals (29)How do Organisms Reproduce (28)The Human Eye and the Colourful World (27)Acids, Bases and Salts (26)Acids Bases Salts (26)Metals & Non-metals (14)Light (13)C10magneticeffects (7)C10humaneye (5)C10heredity (4)C10reproduction (4)Class10 Chem Reaction Types (2)Class10 Chem Redox Energy (2)Class10 Electricity Basics (2)Class10 Electricity Circuits (2)Class10 Life Nutrition Respiration (2)Class10 Life Transport Excretion (2)Class10 Light Lenses (2)Class10 Light Mirrors (2)
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Two lenses of power +5 D and −2 D are placed in contact. The focal length of the combination isRead the answer and worked solution →A 10 mm pin in front of a concave mirror forms a real, inverted 5 mm image at 30 cm in front of the mirror. The focal length of the mirror isRead the answer and worked solution →The refractive index of a medium is 1.5. The speed of light in that medium is (c = 3×10⁸ m/s)Read the answer and worked solution →The magnification produced by a plane mirror isRead the answer and worked solution →
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