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If A = 2i + j + k and B = i + j + k are two vectors, then the unit vector is
17
Sep
If A = 2i + j + k and B = i + j + k are two vectors, then the unit vector is If A = 2i + j + k and B = i + j + k are two vectors then the unit vector is September 17, 2020 Category: Uncategorised (JEE Advanced [...]
A wooden block of mass 8kg is tied to a string attached to the bottom of a tank. The block is completely inside the water. Relative density of wood is 0.8. Taking g=10m/s^2. what is the tension in the string?
17
Sep
A wooden block of mass 8kg is tied to a string attached to the bottom of a tank. The block is completely inside the water. Relative density of wood is 0.8. Taking g=10m/s^2. what is the tension in the string? Upthrust will remain same September 17, 2020 Category: Arihant Physics by D.C Pandey , Chapter [...]
Given two vectors A = 3i + 4j and B = i + j. theta is the angle between A and B. Which of the following statements is / are correct?
17
Sep
Given two vectors A = 3i + 4j and B = i + j. theta is the angle between A and B. Which of the following statements is / are correct? Given two vectors A = 3i + 4j and B = i + j. theta is the angle between A and B. Which of [...]
A capillary tube of radius R is immersed in water and water rises in it to a height H . Mass of water in the capillary tube is . M If the radius of the tube is doubled, mass of water that will rise in the capillary tube will now be
17
Sep
A capillary tube of radius R is immersed in water and water rises in it to a height H . Mass of water in the capillary tube is . M If the radius of the tube is doubled, mass of water that will rise in the capillary tube will now be A capillary tube of [...]
Which of the following statements is /are correct a. The sign of the x- component of d1 is positive and that of d2 is negative. b. The signs of the
17
Sep
Which of the following statements is /are correct a. The sign of the x- component of d1 is positive and that of d2 is negative. b. The signs of the Which of the following statements is /are correct a. The sign of the x- component of d1 is positive and that of d2 is negative. [...]
A object of mass 1 kg and radius 1 m is falling vertically downward inside liquid in a gravity free space. At certain instant the velocity of the sphere is 2ms^−1. If the coefficient viscosity of the liquid is 6π/1 SI units, then velocity of ball will become 0.5ms^−1 after a time
17
Sep
A object of mass 1 kg and radius 1 m is falling vertically downward inside liquid in a gravity free space. At certain instant the velocity of the sphere is 2ms^−1. If the coefficient viscosity of the liquid is 6π/1 SI units, then velocity of ball will become 0.5ms^−1 after a time Upthrust will remain [...]
Two points masses 1 and 2 move with uniform velocities v1 and v2. respectively. Their initial position vectors are r1 and r2. respectively. Which of the following should be satisfied for the collision
17
Sep
Two points masses 1 and 2 move with uniform velocities v1 and v2. respectively. Their initial position vectors are r1 and r2. respectively. Which of the following should be satisfied for the collision Two points masses 1 and 2 move with uniform velocities v1 and v2. respectively. Their initial position vectors are r1 and r2. [...]
A container contains two immiscible liquids p1 and p2 (> p1). A capillary tube of radius r is inserted in the liquid so that its bottom reaches upto denser liquid.the denser liquid rises in the capillary and attains a height h from the interface of the liquid, which is equal to be column length of lighter liquid. Assuming angle of contact to be zero the surface tension of heavier liquid is
17
Sep
A container contains two immiscible liquids p1 and p2 (> p1). A capillary tube of radius r is inserted in the liquid so that its bottom reaches upto denser liquid.the denser liquid rises in the capillary and attains a height h from the interface of the liquid, which is equal to be column length of [...]
The components of a vector along x and y directions are (n + 1 ) and 1, respectively. If the coordinate system is rotated by an angle theta = 60 then components change to n and 3
17
Sep
The components of a vector along x and y directions are (n + 1 ) and 1, respectively. If the coordinate system is rotated by an angle theta = 60 then components change to n and 3 respectively. If the coordinate system is rotated by an angle theta = 60 then components change to n [...]
A candle of diameter d is floating on a liquid in a cylindrical container of diameter D(D>>d) as shown in figure. If it is burning at the rate of 2cm/h. Then, the top of the candle will
17
Sep
A candle of diameter d is floating on a liquid in a cylindrical container of diameter D(D>>d) as shown in figure. If it is burning at the rate of 2cm/h. Then, the top of the candle will A candle of diameter d is floating on a liquid in a cylindrical container of diameter D(D>>d) as [...]