respectively
In a radioactive decay chain, 23290Th nucleus decays to 21282Pb nucleus. Let Nα and Nβ be the number of α and β- particles, respectively, emitted in this decay process. Which of the following statements is (are) true?
15
Sep
In a radioactive decay chain, 23290Th nucleus decays to 21282Pb nucleus. Let Nα and Nβ be the number of α and β- particles, respectively, emitted in this decay process. Which of the following statements is (are) true? 23290Th nucleus decays to 21282Pb nucleus. Let Nα and Nβ be the number of α and β- particles [...]
A Carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62K, its efficiency increases to 1/3. Then T1 and T2 are, respectively
11
Sep
A Carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62K, its efficiency increases to 1/3. Then T1 and T2 are, respectively A Carnot engine operating between temperatures T1 and T2 has efficiency 1/6. When T2 is lowered by 62K its efficiency increases to 1/3. Then T1 and [...]
An ideal gas undergoes a quasi static, reversible process in which its molar heat capacity C remains constant. If during this process the relation of pressure P and volume V is given by PVn = constant, then n is given by (Here CP and CV are molar specific heat at constant pressure and constant volume, respectively) :
11
Sep
An ideal gas undergoes a quasi static, reversible process in which its molar heat capacity C remains constant. If during this process the relation of pressure P and volume V is given by PVn = constant, then n is given by (Here CP and CV are molar specific heat at constant pressure and constant volume, [...]
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An ideal gas undergoes a quasi-static ,
respectively ,
reversible process in which its molar heat capacity C remains constant. If during this process the relation of pressure P and volume V is given by PVn = constant ,
then n is given by (Here CP and CV are molar specific heat at constant pressure and constant volume ,
Two materials having coefficients of thermal conductivity ′ 3K ′ and ′ K ′ and thickness ‘d’ and ′ 3d ′ , respectively, are joined to form a slab as shown in the figure. The temperature of the outer surfaces are ′ θ2 ′ and ′ θ1 ′ respectively, (θ2 > θ1 ). The temperature at the interface is?
10
Sep
Two materials having coefficients of thermal conductivity ′ 3K ′ and ′ K ′ and thickness ‘d’ and ′ 3d ′ , respectively, are joined to form a slab as shown in the figure. The temperature of the outer surfaces are ′ θ2 ′ and ′ θ1 ′ respectively, (θ2 > θ1 ). The [...]
Tags:
(θ2 > θ1 ). The temperature at the interface is? ,
are joined to form a slab as shown in the figure. The temperature of the outer surfaces are ′ θ2 ′ and ′ θ1 ′ respectively ,
respectively ,
Two materials having coefficients of thermal conductivity ′ 3K ′ and ′ K ′ and thickness 'd' and ′ 3d ′ ,
The figure shows two process A and B for a gas. If ΔQ A and ΔQB are the amount of heat absorbed by the system in two cases. and ΔUA and ΔUB are changes in internal energies, respectively, then:
10
Sep
The figure shows two process A and B for a gas. If ΔQ A and ΔQB are the amount of heat absorbed by the system in two cases. and ΔUA and ΔUB are changes in internal energies, respectively, then: respectively The figure shows two process A and B for a gas. If ΔQ [...]
Argon gas is adiabatically compressed to half its volume. If P, V and T represent the pressure, volume and temperature of the gaseous system, respectively, at any stage, then the correct equations representing the process is
06
Sep
Argon gas is adiabatically compressed to half its volume. If P, V and T represent the pressure, volume and temperature of the gaseous system, respectively, at any stage, then the correct equations representing the process is Argon gas is adiabatically compressed to half its volume. If P at any stage respectively then the correct equations [...]
Two identical photocathodes receive light of frequencies f1 and f2 . If the velocities of the photoelectrons (of mass m) coming out are v1 and v2 , respectively, then
04
Sep
Two identical photocathodes receive light of frequencies f1 and f2 . If the velocities of the photoelectrons (of mass m) coming out are v1 and v2 , respectively, then respectively then Two identical photocathodes receive light of frequencies f1 and f2 . If the velocities of the photoelectrons (of mass m) coming out are [...]
58. In the class intervals 10 –20, 20 –30, etc., respectively, 20 lies in the class __________.
12
Jul
58. In the class intervals 10 –20, 20 –30, etc., respectively, 20 lies in the class __________. 20 lies in the class __________. 20-30 58. In the class intervals 10 –20 etc respectively July 12, 2021 Category: Chapter 5 - Data Handling , Maths , NCERT Class 8 ,
If a circle touches the side BC of a triangle ABC at P and extended sides AB and AC at Q and R, respectively, prove that AQ = 1/2 (BC + CA + AB)
05
Jul
If a circle touches the side BC of a triangle ABC at P and extended sides AB and AC at Q and R, respectively, prove that AQ = 1/2 (BC + CA + AB) If a circle touches the side BC of a triangle ABC at P and extended sides AB and AC at Q [...]
2. Let s denote the semi-perimeter of a triangle ABC in which BC = a, CA = b, AB = c. If a circle touches the sides BC, CA, AB at D, E, F, respectively, prove that BD = s – b.
05
Jul
2. Let s denote the semi-perimeter of a triangle ABC in which BC = a, CA = b, AB = c. If a circle touches the sides BC, CA, AB at D, E, F, respectively, prove that BD = s – b. -e 2. Let s denote the semi-perimeter of a triangle ABC in which [...]