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I.E.Irodov's Solution
1.1 A motorboat going downstream overcame a raft at a point A; τ=60 min later it turned back and after some time passed the raft at a distance l=6.0 km from the point A. Find the flow velocity assuming the duty of the engine to be constant.
An experimentalist devises a method for finding the radius of curvature of a convex mirror. He uses a plane mirror strip between the object and the convex mirror and adjusts it till the two virtual images formed by reflection at both the mirrors coincide without parallax. In his observations, the object distance from the convex mirror is 0.5 m while it is 0.30 m in front of the plane mirror. Find the radius of curvature (in cm ) of the convex mirror.
An experimentalist devised a method to find the radius of curvature (R) of a convex mirror by placing a plane mirror strip between an object and the convex mirror. By adjusting them until the two virtual images coincide (no parallax), and given an object distance (u) of 0.5 m from the convex mirror and 0.30 m from the plane mirror, the radius of curvature is calculated as approximately 28.57 cm.
Quark | Quanta of Charge | Properties of Charge
01-Two Electrical Natures: Charge exists as positive and negative.
02-Additive: Total charge is the algebraic sum of individual charges.
03- Quantized: Ordinary charge exists in integral multiples of e.
04- Conserved: Net charge of an isolated system remains constant.
05- Invariant: Charge is independent of the observer's inertial frame.
06- Connected With Motion: The state of motion determines electromagnetic behaviour.
I.E.Irodov's Solution
1.1 A motorboat going downstream overcame a raft at a point A; τ=60 min later it turned back and after some time passed the raft at a distance l=6.0 km from the point A. Find the flow velocity assuming the duty of the engine to be constant.
An experimentalist devises a method for finding the radius of curvature of a convex mirror. He uses a plane mirror strip between the object and the convex mirror and adjusts it till the two virtual images formed by reflection at both the mirrors coincide without parallax. In his observations, the object distance from the convex mirror is 0.5 m while it is 0.30 m in front of the plane mirror. Find the radius of curvature (in cm ) of the convex mirror.
An experimentalist devised a method to find the radius of curvature (R) of a convex mirror by placing a plane mirror strip between an object and the convex mirror. By adjusting them until the two virtual images coincide (no parallax), and given an object distance (u) of 0.5 m from the convex mirror and 0.30 m from the plane mirror, the radius of curvature is calculated as approximately 28.57 cm.
Quark | Quanta of Charge | Properties of Charge
01-Two Electrical Natures: Charge exists as positive and negative.
02-Additive: Total charge is the algebraic sum of individual charges.
03- Quantized: Ordinary charge exists in integral multiples of e.
04- Conserved: Net charge of an isolated system remains constant.
05- Invariant: Charge is independent of the observer's inertial frame.
06- Connected With Motion: The state of motion determines electromagnetic behaviour.
I.E.Irodov's Solution
1.1 A motorboat going downstream overcame a raft at a point A; τ=60 min later it turned back and after some time passed the raft at a distance l=6.0 km from the point A. Find the flow velocity assuming the duty of the engine to be constant.
An experimentalist devises a method for finding the radius of curvature of a convex mirror. He uses a plane mirror strip between the object and the convex mirror and adjusts it till the two virtual images formed by reflection at both the mirrors coincide without parallax. In his observations, the object distance from the convex mirror is 0.5 m while it is 0.30 m in front of the plane mirror. Find the radius of curvature (in cm ) of the convex mirror.
An experimentalist devised a method to find the radius of curvature (R) of a convex mirror by placing a plane mirror strip between an object and the convex mirror. By adjusting them until the two virtual images coincide (no parallax), and given an object distance (u) of 0.5 m from the convex mirror and 0.30 m from the plane mirror, the radius of curvature is calculated as approximately 28.57 cm.
Quark | Quanta of Charge | Properties of Charge
01-Two Electrical Natures: Charge exists as positive and negative.
02-Additive: Total charge is the algebraic sum of individual charges.
03- Quantized: Ordinary charge exists in integral multiples of e.
04- Conserved: Net charge of an isolated system remains constant.
05- Invariant: Charge is independent of the observer's inertial frame.
06- Connected With Motion: The state of motion determines electromagnetic behaviour.