Question Answers
Sahay Sir > Question Answers
8. If the triangle ABC in the Question 7 is revolved about the side 5cm, then find the volume of the solids so obtained. Find also the ratio of the volumes of the two solids obtained in Questions 7 and 8.
17
Oct
8. If the triangle ABC in the Question 7 is revolved about the side 5cm, then find the volume of the solids so obtained. Find also the ratio of the volumes of the two solids obtained in Questions 7 and 8. 8. If the triangle ABC in the Question 7 is revolved about the side [...]
Calculate the energy released when three alpha particles combine to form a 12C nucleus. the atomic mass of 4He2 is 4.002603 u.
17
Oct
Calculate the energy released when three alpha particles combine to form a 12C nucleus. the atomic mass of 4He2 is 4.002603 u. Calculate the energy released when three alpha particles combine to form a 12C nucleus. the atomic mass of 4He2 is 4.002603 u. October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
The 226Ra88 nucleus undergoes alpha decay to 226Rn88. Calculate the amount of energy liberated in this decay. Take the mass of 226Ra88 to be 226.025 402 u, that of 226Rn88 to be 222.017571 u,
17
Oct
The 226Ra88 nucleus undergoes alpha decay to 226Rn88. Calculate the amount of energy liberated in this decay. Take the mass of 226Ra88 to be 226.025 402 u, that of 226Rn88 to be 222.017571 u, that of 226Rn88 to be 222.017571 u The 226Ra88 nucleus undergoes alpha decay to 226Rn88. Calculate the amount of energy liberated [...]
7. A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side 12 cm. Find the volume of the solid so obtained.
17
Oct
7. A right triangle ABC with sides 5cm, 12cm and 13cm is revolved about the side 12 cm. Find the volume of the solid so obtained. 12cm and 13cm is revolved about the side 12 cm. Find the volume of the solid so obtained. 7. A right triangle ABC with sides 5cm October 17, 2020 [...]
A wires of length I is bent into a circular loop of radius R and loop is B. The same wire is now bent into a double loop of equal radii. If both loops carry the same current I and it is in the same direction, the magnetic field at the centre of the double loop will be
17
Oct
A wires of length I is bent into a circular loop of radius R and loop is B. The same wire is now bent into a double loop of equal radii. If both loops carry the same current I and it is in the same direction, the magnetic field at the centre of the double [...]
6. The volume of a right circular cone is 9856 cm^3. If the diameter of the base is 28cm, find (i) height of the cone (ii) slant height of the cone (iii) curved surface area of the cone
17
Oct
6. The volume of a right circular cone is 9856 cm^3. If the diameter of the base is 28cm, find (i) height of the cone (ii) slant height of the cone (iii) curved surface area of the cone 6. The volume of a right circular cone is 9856 cm^3. If the diameter of the base [...]
5. A conical pit of top diameter 3.5m is 12m deep. What is its capacity in kiloliters?
17
Oct
5. A conical pit of top diameter 3.5m is 12m deep. What is its capacity in kiloliters? 5. A conical pit of top diameter 3.5m is 12m deep. What is its capacity in kiloliters? October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths , NCERT Class 9 ,
4. If the volume of a right circular cone of height 9cm is 48 π cm^3, find the diameter of its base.
17
Oct
4. If the volume of a right circular cone of height 9cm is 48 π cm^3, find the diameter of its base. 4. If the volume of a right circular cone of height 9cm is 48 π cm^3 find the diameter of its base. October 17, 2020 Category: Chapter 13 - Surface Areas and Volumes [...]
Two long conducting wires carrying equal currents are placed to the z axis . A charged particle is made to move in a ciircular path of radius a with centre of the path at point ( 0, a ) in clockwise direction.
17
Oct
Two long conducting wires carrying equal currents are placed to the z axis . A charged particle is made to move in a ciircular path of radius a with centre of the path at point ( 0, a ) in clockwise direction. a ) in clockwise direction. Two long conducting wires carrying equal currents are [...]
Estimate the minimum amount of 235U92 that needs to undergo fission in order to run a 1000 MW power reactor per year of continuous operation. Assume an efficiency of about 33 percent.
17
Oct
Estimate the minimum amount of 235U92 that needs to undergo fission in order to run a 1000 MW power reactor per year of continuous operation. Assume an efficiency of about 33 percent. Estimate the minimum amount of 235U92 that needs to undergo fission in order to run a 1000 MW power reactor per year of [...]