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A certain radioactive material can undergo three different types of decay, each with a different decay constant lemda, 2lemda, and 3 lemda. Then, the effective decay constant
17
Oct
A certain radioactive material can undergo three different types of decay, each with a different decay constant lemda, 2lemda, and 3 lemda. Then, the effective decay constant 2lemda A certain radioactive material can undergo three different types of decay and 3 lemda. Then each with a different decay constant lemda the effective decay constant October [...]
A nucleus moving with velocity v emits an alpha particle. Let the velocities of the alpha particle and the remaining nucleus be v1 and v2 and their masses be m1 and m2, then
17
Oct
A nucleus moving with velocity v emits an alpha particle. Let the velocities of the alpha particle and the remaining nucleus be v1 and v2 and their masses be m1 and m2, then A nucleus moving with velocity v emits an alpha particle. Let the velocities of the alpha particle and the remaining nucleus be [...]
2. Find the amount of water displaced by a solid spherical ball of diameter (ii) 0.21 m
17
Oct
2. Find the amount of water displaced by a solid spherical ball of diameter (ii) 0.21 m 2. Find the amount of water displaced by a solid spherical ball of diameter (ii) 0.21 m October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
A radioactive sample decays by 63% of its initial value in 10 s. It would have decayed by 50% of its initial value in
17
Oct
A radioactive sample decays by 63% of its initial value in 10 s. It would have decayed by 50% of its initial value in A radioactive sample decays by 63% of its initial value in 10 s. It would have decayed by 50% of its initial value in October 17, 2020 Category: Uncategorised (JEE Advanced [...]
2. Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm
17
Oct
2. Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm 2. Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
In a sample of rock, the ratio of 206Pb to 238U nuclei is found to be 0.5. The age of the rock is (given half-life of U238 is 4.5 * 10^9 years)
17
Oct
In a sample of rock, the ratio of 206Pb to 238U nuclei is found to be 0.5. The age of the rock is (given half-life of U238 is 4.5 * 10^9 years) In a sample of rock the ratio of 206Pb to 238U nuclei is found to be 0.5. The age of the rock is [...]
1. Find the volume of a sphere whose radius is (ii) 0.63 m
17
Oct
1. Find the volume of a sphere whose radius is (ii) 0.63 m 1. Find the volume of a sphere whose radius is (ii) 0.63 m October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
1. Find the volume of a sphere whose radius is (i) 7 cm
17
Oct
1. Find the volume of a sphere whose radius is (i) 7 cm 1. Find the volume of a sphere whose radius is (i) 7 cm October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
Consider two arbitrary decay equations and mark the correct alternative(s) given below.
17
Oct
Consider two arbitrary decay equations and mark the correct alternative(s) given below. Consider two arbitrary decay equations and mark the correct alternative(s) given below. October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
9. A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required.
17
Oct
9. A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required. 3. The height of a cone is 15cm. If its [...]