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asaduzzaman1975 (36)in #physics • 8 years ago
ELECTROMOTIVE FORCE
The maximum potential difference that exists between the terminals of a cell which is disconnected from the external circuit is called electromotive force. When there is no…
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asaduzzaman1975 (36)in #science • 8 years ago
KEPLER SPACE TELESCOPE
It found a earth like planet Kepler-22b which is 600 light years from the earth.
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asaduzzaman1975 (36)in #physics • 8 years ago
REDSHIFT
Doppler Effect When there is a relative motion between the source of waves and the observer, the frequency of wave produced by a source and the frequency received by the…
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asaduzzaman1975 (36)in #physic • 8 years ago
Photoelectric Effect
When light of appropriate frequency is incident on a metal, then electrons are emitted from that metal. This process of emission of electrons is called photoelectric emission and…
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asaduzzaman1975 (36)in #education • 8 years ago
A GOOD TEACHER
As a teacher, you have to wear many hats. You will, to name but of a few of the roles teachers assume in carrying out their duties, be a communicator, a disciplinarian, a…
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asaduzzaman1975 (36)in #physics • 8 years ago
Total internal reflection
When light passes from more denser medium to less denser medium, if the angle of incidence is more than critical angle all light reflects to the denser medium from the plane of…
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asaduzzaman1975 reblogged
mrviquez (71)in #food • 8 years ago
Mancave Recipes: How to cook rice!!!!
Mancave Recipes: How to cook rice!!!! Welcome back to my page. Today I'm starting a new series call Mancave Recipes. Where I help teach all you non cooking men how to…
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asaduzzaman1975 reblogged
customnature (69)in #travel • 8 years ago
The aptly-named "Teakettle Junction".
Burning the midnight oil here on Steemit! I wanted to share a unique desert landmark I happened upon about a year or two ago. While driving some 20+ miles on a treacherous…
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asaduzzaman1975 (36)in #physics • 8 years ago
resistance of conductor
Resistance of conductor increases with increase in temperature. When temperature of a resistor increases the particles vibrates with greater amplitude. As a result free electrons…
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asaduzzaman1975 (36)in #science • 8 years ago
Earth like planet Kepler-22b
First observed transit by Kepler space telescope in May 12, 2009. It is located about 600 light-years from Earth. Kepler-22b's size is roughly twice that of Earth. Its mass and…
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asaduzzaman1975 (36)in #science • 8 years ago
Dream of mondila
Year 2100 Mondila is a girl of 18 years. She is the first baby born in artificial ovary. To design her genetic code scientist took 30 years. She is now studying artificial…
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asaduzzaman1975 (36)in #physics • 8 years ago
rainbow
This is due to total internal reflection
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asaduzzaman1975 (36)in #physics • 8 years ago
resistance of semiconductor
Resistance of semiconductor decreases with increase in temperature. Lattice vibration increases with increase in temperature that increase the temperature. Charge carrier density…
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asaduzzaman1975 (36)in #physics • 8 years ago
refractive index
For a fixed couple of medium and for light rays of fixed color incident obliquely, the ratio of sine of the angle of incidence to the sine of angle of refraction is a constant.…
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asaduzzaman1975 (36)in #physics • 8 years ago
critical angle
When light passes from more denser medium to less denser medium for which angle of incidence, angle of refraction will be 90 degrees that angle of incidence is called critical angle.
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asaduzzaman1975 (36)in #science • 8 years ago
Wheel
First wheel used 8000 B.C. in Asia
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asaduzzaman1975 (36)in #physics • 8 years ago
Error in Measurement
In the very ancient period of civilization human uses footsteps, foot and hand to measure the distance or length of a body. But those method creates various types of trouble.…
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asaduzzaman1975 (36)in #history • 8 years ago
Thales (624 B.C.-546 B.C.)
He is a Philosopher born in Miletus, Turkey. Nationality: Greek Invention: The most difficult thing in life to know yourself
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