Torque and Angular Momentum) 10, An angular impulse of 20 Nms is applied to a hollow cylinder of mass 2 kg and radius 20 cm. The change in its angular speed is (
![A thin 20-cm\times 20-cm flat plate is pulled at 1 m/s horizontally through a 3.6-mm-thick oil layer sandwiched between two plates, one stationary and the other moving at a constant velocity of A thin 20-cm\times 20-cm flat plate is pulled at 1 m/s horizontally through a 3.6-mm-thick oil layer sandwiched between two plates, one stationary and the other moving at a constant velocity of](https://homework.study.com/cimages/multimages/16/v_n6193936967141600864.png)
A thin 20-cm\times 20-cm flat plate is pulled at 1 m/s horizontally through a 3.6-mm-thick oil layer sandwiched between two plates, one stationary and the other moving at a constant velocity of
![When a conductance cell was filled with 0.0025 M solution of K2SO4 , its resistance was 326 ohm. Length of cell = 100cm and cross - sectional area 2.14 × 10^-4 cm^2 . The specific resistance of K2SO4 is: When a conductance cell was filled with 0.0025 M solution of K2SO4 , its resistance was 326 ohm. Length of cell = 100cm and cross - sectional area 2.14 × 10^-4 cm^2 . The specific resistance of K2SO4 is:](https://dwes9vv9u0550.cloudfront.net/images/7260540/8470597e-f9b6-4f44-a7cc-d67144288d59.jpg)
When a conductance cell was filled with 0.0025 M solution of K2SO4 , its resistance was 326 ohm. Length of cell = 100cm and cross - sectional area 2.14 × 10^-4 cm^2 . The specific resistance of K2SO4 is:
![An object of height 1.2 m is placed before a concave mirror of focal length 20 cm - CBSE Class 10 Science - Learn CBSE Forum An object of height 1.2 m is placed before a concave mirror of focal length 20 cm - CBSE Class 10 Science - Learn CBSE Forum](https://ask.learncbse.in/uploads/db3785/original/3X/c/3/c3588ebe6a4dbda14b740b603e945bb641b49f45.png)
An object of height 1.2 m is placed before a concave mirror of focal length 20 cm - CBSE Class 10 Science - Learn CBSE Forum
![Find the power of a convex lens which forms a real, and inverted image of magnification –1 of an object placed at a distance of 20 cm from its optical centre. Find the power of a convex lens which forms a real, and inverted image of magnification –1 of an object placed at a distance of 20 cm from its optical centre.](https://api.flasheducation.co.in/media/images/2020/09/10/image_EU3ZFXp.png)