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3. Find the height of a cuboid whose base area is 180 cm^2 and volume is 900 cm^3?
12
Oct
3. Find the height of a cuboid whose base area is 180 cm^2 and volume is 900 cm^3? 3. Find the height of a cuboid whose base area is 180 cm^2 and volume is 900 cm^3? October 12, 2020 Category: Chapter 11 - Mensuration , Maths , NCERT Class 8 ,
2. Diameter of cylinder A is 7 cm and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater? Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also has greater surface area.
12
Oct
2. Diameter of cylinder A is 7 cm and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater? Verify it by finding the volume of both the cylinders. Check whether the cylinder with greater volume also [...]
10. A company packages its milk powder in cylindrical container whose base has a diameter of 14 cm and height 20 cm. Company places a label around the surface of the container (as shown in figure). If the label is placed 2 cm from top and bottom, what is the area of the label?
12
Oct
10. A company packages its milk powder in cylindrical container whose base has a diameter of 14 cm and height 20 cm. Company places a label around the surface of the container (as shown in figure). If the label is placed 2 cm from top and bottom, what is the area of the label? 3. [...]
9. A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length 1 m.
12
Oct
9. A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length 1 m. 9. A road roller takes 750 complete revolutions to move once over to level a road. Find the area [...]
8. The lateral surface area of a hollow cylinder is 4224 cm^2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?
12
Oct
8. The lateral surface area of a hollow cylinder is 4224 cm^2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet? 8. The lateral surface area of a hollow cylinder is 4224 cm^2. It is cut along its height and formed a rectangular [...]
7. A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required?
12
Oct
7. A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required? 7. A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required? October [...]
Yellow light is used in single slit diffraction experiment with slit width 0.6 mm. If yellow light is replaced by X-rays then the pattern will reveal
12
Oct
Yellow light is used in single slit diffraction experiment with slit width 0.6 mm. If yellow light is replaced by X-rays then the pattern will reveal Yellow light is used in single slit diffraction experiment with slit width 0.6 mm. If yellow light is replaced by X-rays then the pattern will reveal October 12, 2020 [...]
6. Describe how the two figures below are alike and how they are different. Which box has larger lateral surface areas?
12
Oct
6. Describe how the two figures below are alike and how they are different. Which box has larger lateral surface areas? 6. Describe how the two figures below are alike and how they are different. Which box has larger lateral surface areas? October 12, 2020 Category: Chapter 11 - Mensuration , Maths , NCERT Class [...]
A rocket is moving away from the earth at a speed of 6 * 10^7 m/s. The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth?
12
Oct
A rocket is moving away from the earth at a speed of 6 * 10^7 m/s. The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth? A rocket is moving away from the earth at a speed of 6 * 10^7 m/s. The rocket [...]
The observed wavelength of light coming from a distant galaxy is found to be increased by 0.5% as compared with that coming from a terrestrial source. The galaxy is
12
Oct
The observed wavelength of light coming from a distant galaxy is found to be increased by 0.5% as compared with that coming from a terrestrial source. The galaxy is The observed wavelength of light coming from a distant galaxy is found to be increased by 0.5% as compared with that coming from a terrestrial source. [...]