Leakage of charges from the sharp points or edges of conductor occurs due to dielectric breakdown in air due to high electric field at the sharp points or edges. That's why edges are avoided in electric machines.
Let V be the speed of swimmer and v be the speed of water of river. According to the question , V + v = 20 or, V=20-v.......(1) Next, V – v = 8 or,20-v-v=8 or,20-8=2v Therefore, v=6 km/hr Substituting the value of v in eqn 1 V=20-6=14 Km/hr Hence, swimmer’s speed = 14 Km/hr and water's speed = 6 Km/Read more
Given, Horizontal velocity =300km/h =300×1000/(60×60) =83.33 m/s We know, t=(2h/g)1/2 =(2×800/10)1/2 =(160)1/2 t=12.64 seconds Next, The distance at which box will fall=horizontal velocity x time =83.33 x12.64 =1053.33 m
The answer for given questions are: Q. No. 1 Answer: ii. reduction in emission of greenhouse gases Q.no.2 Answer: ii. it absorbs UV rays Q.no.3. Answer: iv. uv rays
The answer for given questions are: Q. No. 1 Answer: ii. reduction in emission of greenhouse gases Q.no.2 Answer: ii. it abosrbs UV rays Q.no.3. Answer: iv. uv rays
Water has a higher heat capacity than soil , so the ocean takes much longer to heat and to cool than the land. Coastal areas will generally have more moderate temperatures than inland areas because of the heat capacity of the ocean.But deserts have high temperatures. Hence,the weather of coastal areRead more
In a spring mass system, We know t=2pi×m×k If we make the mass constant, 2pi is itself constant Then, 2t=2k Hence,spring constant should be doubled in order to make the time period, 2t.
We know, T=2×pi m ×k Here, T is directly proportional to mass of the object. So, when the mass will be 2m Then, the T will also be 2t. Hence,the new time period will also be double when mass is doubled.
Electrostatics
Samikshya Thakuri
Leakage of charges from the sharp points or edges of conductor occurs due to dielectric breakdown in air due to high electric field at the sharp points or edges. That's why edges are avoided in electric machines.
vector
Samikshya Thakuri
Let V be the speed of swimmer and v be the speed of water of river. According to the question , V + v = 20 or, V=20-v.......(1) Next, V – v = 8 or,20-v-v=8 or,20-8=2v Therefore, v=6 km/hr Substituting the value of v in eqn 1 V=20-6=14 Km/hr Hence, swimmer’s speed = 14 Km/hr and water's speed = 6 Km/Read more
Electrostatics
Samikshya Thakuri
We know, Capacitance (C) =ε(A/d) If distance id doubled then C1= ε(A/2d) ie. C1=C/2 Hence,doubling the distance makes the capacitance half.
Projectile(Mechanics)
Samikshya Thakuri
Given, Horizontal velocity =300km/h =300×1000/(60×60) =83.33 m/s We know, t=(2h/g)1/2 =(2×800/10)1/2 =(160)1/2 t=12.64 seconds Next, The distance at which box will fall=horizontal velocity x time =83.33 x12.64 =1053.33 m
Entrance Question
Samikshya Thakuri
The answer for given questions are: Q. No. 1 Answer: ii. reduction in emission of greenhouse gases Q.no.2 Answer: ii. it absorbs UV rays Q.no.3. Answer: iv. uv rays
Entrance Question
Samikshya Thakuri
The answer for given questions are: Q. No. 1 Answer: ii. reduction in emission of greenhouse gases Q.no.2 Answer: ii. it abosrbs UV rays Q.no.3. Answer: iv. uv rays
Mechanics (Dimension)
Samikshya Thakuri
We know, E=mc^2 Where, Dimension of m=[M] Dimension of C=[L/T]; C^2=[L^2/T^2 Hence, dimensional formula for energy is [M L^2 T^-2]
Heat (Specific heat capacity)
Samikshya Thakuri
Water has a higher heat capacity than soil , so the ocean takes much longer to heat and to cool than the land. Coastal areas will generally have more moderate temperatures than inland areas because of the heat capacity of the ocean.But deserts have high temperatures. Hence,the weather of coastal areRead more
Mechanics (Simple harmonic motion)
Samikshya Thakuri
In a spring mass system, We know t=2pi×m×k If we make the mass constant, 2pi is itself constant Then, 2t=2k Hence,spring constant should be doubled in order to make the time period, 2t.
Mechanics(Simple harmonic motion)
Samikshya Thakuri
We know, T=2×pi m ×k Here, T is directly proportional to mass of the object. So, when the mass will be 2m Then, the T will also be 2t. Hence,the new time period will also be double when mass is doubled.