Chemistry-
General
Easy
Question
Ionization energies of five elements in kcal/mol are given below:
Which element is a noble gas?
- P
- T
- R
- S
The correct answer is: T
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chemistry-
Following graph shows variation of I.P. with atomic number in second period (Li-Ne). Value of I.P. of Na(11) will be -
Following graph shows variation of I.P. with atomic number in second period (Li-Ne). Value of I.P. of Na(11) will be -
chemistry-General
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Pd has exceptional outer electronic configuration as 
, it belong to -
Pd has exceptional outer electronic configuration as , it belong to -
chemistry-General
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In the general electronic configuration 
, if value of n=7 the configuration will be -
In the general electronic configuration , if value of n=7 the configuration will be -
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The adjoining diagram shows three soap bubbles A, B and C prepared by blowing the capillary tube fitted with stop cocks S, 
and 
with stop cock S closed and stop cocks and opened :–
The adjoining diagram shows three soap bubbles A, B and C prepared by blowing the capillary tube fitted with stop cocks S, and with stop cock S closed and stop cocks and opened :–
physics-General
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The load versus elongation graph for four wires of the same material and same length is shown in the figure. The thinnest wire is represented by the line
The load versus elongation graph for four wires of the same material and same length is shown in the figure. The thinnest wire is represented by the line
physics-General
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A cylindrical container of length L is full to the brim with a liquid which has mass density 
. It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. If instead of being pushed down by a rod, the ball is held in place by a thin string attached to the bottom of the container as shown on the right. What is the tension T in the string?
A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. If instead of being pushed down by a rod, the ball is held in place by a thin string attached to the bottom of the container as shown on the right. What is the tension T in the string?
physics-General
physics-
A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the reading of the scale when the ball is fully immersed
A cylindrical container of length L is full to the brim with a liquid which has mass density . It is placed on a weight scale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the reading of the scale when the ball is fully immersed
physics-General
physics-
A cylindrical container of length L is full to the brim with a liquid which has mass density 
It is placed on a weigh tscale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the mass M of liquid which overflowed while the ball was being pushed into the liquid?
A cylindrical container of length L is full to the brim with a liquid which has mass density It is placed on a weigh tscale; the scale reading is w. A light ball which would float on the liquid if allowed to do so, of volume V and mass m is pushed gently down and held beneath the surface of the liquid with a rigid rod of negligible volume as shown on the left. What is the mass M of liquid which overflowed while the ball was being pushed into the liquid?
physics-General
physics-
Velocity of efflux in Torricelli's theorem is given by 
, here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. At what distance from point O, will be liquid strike on the ground?
Velocity of efflux in Torricelli's theorem is given by , here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. At what distance from point O, will be liquid strike on the ground?
physics-General
physics-
Velocity of efflux in Torricelli's theorem is given by , here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. What is its time of fall of liquid on the ground?
Velocity of efflux in Torricelli's theorem is given by , here h is the height of hole from the top surface, after that, motion of liquid can be treated as projectile motion. What is its time of fall of liquid on the ground?
physics-General
physics-
A glass full of water is placed on a weighing scale, which reads 10 N. A coin with weight 1 N is gently released into the water. At first, the coin accelerates as it falls and about halfway down the glass, the coin reaches terminal velocity. Eventually, the coin rests on the bottom of the glass. Acceleration due to gravity is 
. The scale reads
A glass full of water is placed on a weighing scale, which reads 10 N. A coin with weight 1 N is gently released into the water. At first, the coin accelerates as it falls and about halfway down the glass, the coin reaches terminal velocity. Eventually, the coin rests on the bottom of the glass. Acceleration due to gravity is . The scale reads
physics-General
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Some pieces of impurity (density = ) is embedded in ice. This ice is floating in water (density = 
). When ice melts, level of water will
Some pieces of impurity (density = ) is embedded in ice. This ice is floating in water (density = ). When ice melts, level of water will
physics-General
physics-
The diagram shows a force-extension graph for a rubber band. Consider the following statements
I) It will be easier to compress this rubber than expand it.
II) Rubber does not return to its original length after it is stretched.
III) The rubber band will get heated if it is stretched and released. Which of these can deduced from the graph-
The diagram shows a force-extension graph for a rubber band. Consider the following statements
I) It will be easier to compress this rubber than expand it.
II) Rubber does not return to its original length after it is stretched.
III) The rubber band will get heated if it is stretched and released. Which of these can deduced from the graph-
physics-General
physics-
A solid right cylinder of length 
stands upright at rest on the bottom of a large tub filled with water up to height h as shown in the figure-I. Density of material of the cylinder equals to that of water. Now the cylinder is pulled slowly out of water with the help of a thin light inextensible thread as shown in figure-II. Find the work done by the tension force develop in the thread.
A solid right cylinder of length stands upright at rest on the bottom of a large tub filled with water up to height h as shown in the figure-I. Density of material of the cylinder equals to that of water. Now the cylinder is pulled slowly out of water with the help of a thin light inextensible thread as shown in figure-II. Find the work done by the tension force develop in the thread.
physics-General
