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Electric charge(static electricity) (part -1)
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Coulomb's law,Electric field,electric field intensity , gauss law and its application clickHERE
Very helpfull material for the Neet ,jee ,CEE aspirant student From all the student side thank You to the creature🌅 Need more content as like this With hoping this🌌
1. A body of mass m, projected at an angle of θ from the ground with an initial velocity of v, acceleration due to gravity is g, what is the maximum horizontal range covered? a) R = v2 (sin 2θ)/g b) R = v2 (sin θ)/2g c) R = v2 (sin 2θ)/2g d) R = v2 (sin θ)/g 2. A body of mass 5 kg, projected at an angle of 60° from the ground with an initial velocity of 25 m/s, acceleration due to gravity is g = 10 m/s2, what is the maximum horizontal range covered? a) 54.13 m b) 49 m c) 49.16 m d) 60 m 3. A body of mass 10 kg, projected at an angle of 30° from the ground with an initial velocity of 5 m/s, acceleration due to gravity is g = 10 m/s2, what is the time of flight? a) 0.866s b) 1.86 s c) 1.96 s d) 1.862s 4. On calculating which of the following quantities, the mass of the body has an effect in simple projectile motion? a) Velocity b) Force c) Time of flight d) Range 5. A ball of mass 100 g, projected at an angle of 30° from the ground with an initial velocity of 11 m/s, acceleration due to ...
Q1: A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following Hyperbolic path Straight path Circular path Parabolic path Answer: (d) Parabolic path Q2: A bullet is dropped from the same height when another bullet is fired horizontally. They will hit the ground Simultaneously Depends on the observer One after the other None of the above Answer: (b) Simultaneously Q3: A bomb is dropped from an aeroplane moving horizontally at a constant speed. When air resistance is taken into consideration, the bomb Flies with the aeroplane Falls to earth behind the aeroplane Falls to earth ahead of the plane Falls to earth exactly below the aeroplane Answer: (b) Falls to earth behind the aeroplane Q4: The maximum range of gum on horizontal terrain is 16 km. If g = 10 m/s2. What must be the muzzle velocity of the shell? 400 m/s 100 m/s 200 m/s 50 m/s Answer: (a) 400 m/s Q5: An aeroplane flying 490 m above ground level at 1...
1. Which one of the following Cartesian coordinate systems is not followed in physics? Ans: d 2. Identify the unit vector in the following. Ans: d 3. Which one of the following physical quantities cannot be represented by a scalar? (a) Mass (b) length (c) momentum (d) magnitude of acceleration 4. Two objects of masses m 1 and m 2 fall from the heights h 1 and h 2 respectively. The ratio of the magnitude of their momenta when they hit the ground is Ans: c 5. If a particle has negative velocity and negative acceleration, its speed (a) increases (b) decreases (c) remains same (d) zero 6. If the velocity is , then the magnitude of acceleration at t = 0.5 s is (a) 1m s -2 (b) 2 m s -2 (c) zero (d) -1 m s -2 7. If an object is dropped from the top of a building and it reaches the ground at t = 4 s , then the height of the building is (ignoring air resistance) (g = 9.8 ms –2 ) ...
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