jee main , jee advance ,CBSE , NEET, 11 and 12 all competitive exam cources with,Best notes , solved questions and numerical problems and practice sheet for india and Nepal
Coulomb's law,Electric field,electric field intensity , gauss law and its application (part -2)
Get link
Facebook
Twitter
Pinterest
Email
Other Apps
FOR Electric potential, Potential difference between two points,Electric potential energy ,Electric volt
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 100 m
Question: Newton's first law of motion describes the a) inertia b) energy c) work d) moment of inertia Answer: inertia Question: Inertia is the property of a body linked to tendency of a body a) to resist any change in its state b) to change the momentum c) to change its direction d) to change its position Answer: to resist any change in its state Question: Physical independence of force is a consequence of a) first law of motion b) third law of motion c) second law of motion d) all of these Answer: first law of motion Question: A reference frame attached to the earth a) cannot be an inertial frame because earth is revolving round the sun b) is an inertial frame by definition c) is an inertial frame because Newton's laws are applicable d) is an inertial frame because the earth is rotating about its own axis Answer: cannot be an inertial frame because earth is revolving round the sun Question: The direction of impulse is a) same as that of the net force b) opposite to th
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 ) (a) 77.3 m (b) 78.4 m (c) 80.5 m (d) 79.2 m 8. A ball is projected vertically upward
Comments
Post a Comment