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Show that the nuclide 8Be has a positive binding energy but is unstable with respect to decay into two alpha particles, where masses of neutron, 1H, and 8B are 1.008665 u, 1.007825u,
17
Oct
Show that the nuclide 8Be has a positive binding energy but is unstable with respect to decay into two alpha particles, where masses of neutron, 1H, and 8B are 1.008665 u, 1.007825u, 1.007825u 1H and 8B are 1.008665 u Show that the nuclide 8Be has a positive binding energy but is unstable with respect to [...]
1. A matchbox measures 4 cm×2.5cm×1.5cm. What will be the volume of a packet containing 12 such boxes?
17
Oct
1. A matchbox measures 4 cm×2.5cm×1.5cm. What will be the volume of a packet containing 12 such boxes? 1. A matchbox measures 4 cm×2.5cm×1.5cm. What will be the volume of a packet containing 12 such boxes? October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
Find the magnetic field at the origin in the figure shown in figure.
17
Oct
Find the magnetic field at the origin in the figure shown in figure. Find the magnetic field at the origin in the figure shown in figure. October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Take a sample of lead and oxygen. They contain different atoms and the density of solid lead is much greater than that of gaseous oxygen. Decide whether the density of the nucleus in a lead atom
17
Oct
Take a sample of lead and oxygen. They contain different atoms and the density of solid lead is much greater than that of gaseous oxygen. Decide whether the density of the nucleus in a lead atom Take a sample of lead and oxygen. They contain different atoms and the density of solid lead is much [...]
9. A right circular cylinder just encloses a sphere of radius r (see fig. 13.22). Find (i) surface area of the sphere, (ii) curved surface area of the cylinder, (iii) ratio of the areas obtained in(i) and (ii).
17
Oct
9. A right circular cylinder just encloses a sphere of radius r (see fig. 13.22). Find (i) surface area of the sphere, (ii) curved surface area of the cylinder, (iii) ratio of the areas obtained in(i) and (ii). (ii) curved surface area of the cylinder (iii) ratio of the areas obtained in(i) and (ii). 9. [...]
What is the magnitude of magnetic field at the centyre O of loop of radius root 2 m made of uniform wire when a current of 1 A enters in the loop and is taken out of it by two long wires as shown in figure ?
17
Oct
What is the magnitude of magnetic field at the centyre O of loop of radius root 2 m made of uniform wire when a current of 1 A enters in the loop and is taken out of it by two long wires as shown in figure ? A cylindrical wire of radius R is carrying [...]
8. A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface of the bowl.
17
Oct
8. A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface of the bowl. 0.25 cm thick. The inner radius of the bowl is 5cm. Find the outer curved surface of the bowl. 8. A hemispherical bowl is made of steel October [...]
7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
17
Oct
7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas. 7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas. October 17, 2020 Category: Chapter 13 - Surface Areas [...]
In figure, the conductors carry equal currents i. All straight segments are very long and the two circular loops have equal radii. However, the currents around the loops have opposite senses. The ratio of the magnetic fields at a and b , at the centres of the two loops , is
17
Oct
In figure, the conductors carry equal currents i. All straight segments are very long and the two circular loops have equal radii. However, the currents around the loops have opposite senses. The ratio of the magnetic fields at a and b , at the centres of the two loops , is at the centres of [...]
6. Find the radius of a sphere whose surface area is 154 cm^2.
17
Oct
6. Find the radius of a sphere whose surface area is 154 cm^2. 6. Find the radius of a sphere whose surface area is 154 cm^2. October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,