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![[Post New]](/templates/default/images/icon_minipost_new.gif) 10 Feb 2008 23:25:18 IST
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does a convex lens always converge light?
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"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg
"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy
RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
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10 Feb 2008 23:29:54 IST
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Why is it that when the sun shines on our hand, we feel the energy being absorbed from electromagnetic waves, our hands get warm but we do not feel pressure. ANS- Electromagnetic waves also transfer momentum to our hand but because c is very large  the amount of momentum transferred is extremely
small and we do not feel the pressure.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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10 Feb 2008 23:35:06 IST
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if a convex lens is cut in half ... will the focal length decrease or increase ??
i was asked this in my viva!
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URL=http://www.sparklee.com] [/URL] |
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10 Feb 2008 23:36:28 IST
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how can the senstivity of the potentiometer be increased???
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URL=http://www.sparklee.com][/URL] |
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10 Feb 2008 23:41:39 IST
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why should emf of driver cell be greater thn emf of driven cell???
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URL=http://www.sparklee.com][/URL] |
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10 Feb 2008 23:42:14 IST
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why is there one sided deflection in the potentiometer experiment...... give 4 reasons
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URL=http://www.sparklee.com][/URL] |
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10 Feb 2008 23:45:22 IST
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ok......5pointer for the first question contributed by the person and 2 points for others cont by same person, ok??
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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10 Feb 2008 23:53:30 IST
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Physics boards paper is a piece of cake if you have prepared for JEE properly. Its really too simple. So, enjoy the paper with a cool mind and you will get cool marks. But write a neat paper. Look is very important :D
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http://14-69-8.blogspot.com
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11 Feb 2008 00:00:05 IST
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state the condition under which a microwave oven heats up a food item containing water molecules more efficiently? ans--- the conditions are such that the frequency of the microwaves should be equal to the resonant frequency of the water molecules so that the water molecules absorb them. the molecules gain energy and transfer it to surrounding molecules and thus the food gets heated.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:00:12 IST
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:00:15 IST
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:01:08 IST
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state the condition under which a microwave oven heats up a food item containing water molecules more efficiently?
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:01:16 IST
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state the condition under which a microwave oven heats up a food item containing water molecules more efficiently?
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:02:27 IST
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sorry something happened..
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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11 Feb 2008 00:06:54 IST
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