01 A student observes a pencil half-immersed in water (refractive index 1.33) and…

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02 A student places an object 15 cm in front of a concave…

RRB PYQ MCQ

03 Two lenses, one converging with focal length 12 cm and one diverging…

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04 With ageing, the power of accommodation of the human eye decreases, causing…

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05 A traffic surveillance camera uses a convex mirror with a radius of…

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01 In an electric circuit, what produces the potential difference needed for charge…

RRB PYQ MCQ

02 While opening a bottle cap using a bottle opener, the resistance offered…

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03 A wire of resistance 10 ohms is connected to a 12 V…

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01 A Distance-Time graph shows a curve that starts steep and gradually becomes…

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01 Which of the following features is unique to longitudinal sound waves?

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