Recent questions tagged ch-10

A beam of light consisting of two wave length 650 nm and 520 nm, is used to obtain interference finger in a young's double slit experiment . What is the least distance from the central maximum ? Where the bright fringer due to both wavelength coincide ?

asked May 26, 2016 by meena.p

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A beam of light consisting of two wave length 650 nm and 520 nm, is used to obtain interference finger in a young's double slit experiment . Find the distance of the third bright fringe on the screen from the central maximum for wave length 650 nm

asked May 26, 2016 by meena.p

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In a double slit experiment, the angular width of a fringe is found to be $0.2 ^{\circ}$ on a screen placed 1 m away . The wave length of light used is 600 nm. What will be the angular width of the fringe if the entire experimental approaches is immerse in water ? Take refractive index of water to be 4/3 ?

asked May 26, 2016 by meena.p

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What is Brewster's angle for air to glass transition ?

asked May 26, 2016 by meena.p

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In Young's double slit experience using monochromatic light of wave length $\lambda$ , the intensity of light at a point on the screen where path different is $\lambda$ is k units. What is the intensity at a point where path different is $\large\frac{\lambda}{3}$

asked May 26, 2016 by meena.p

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In yang's double slit experiment , the slit are separated by $0.25$ mm and the screen is placed 1.4 m away. The distance the control bright fringe and the fourth bright fringe is measured to be 1.2 cm determine the wave length of light used in the experiment

asked May 26, 2016 by meena.p

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If the speed of light in glass independent of colors of light , If not which of the two colours, red and violet travels slower in a glass prism ?

asked May 26, 2016 by meena.p

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The refractive index of glass is 1.5 . What is the speed of light in glass ? (speed of light in vacuum is $3 \times 10^{8}m/s$)

asked May 26, 2016 by meena.p

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What is the shape of the wave front when the portion of the wavepool of light from a distant star is intercepted by earth

asked May 26, 2016 by meena.p

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what is the shape of the wave length in the light emerging out of a cave lens when a point source is placed at its focus

asked May 26, 2016 by meena.p

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What is the shape of the wave front in the light diverging from point source .

asked May 26, 2016 by meena.p

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Monochromatic light of wavelength $589\;nm$ is incident from air on a water surface. What is the wave length frequency and speed of reflected light ? $\mu=1.33$

asked May 26, 2016 by meena.p

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Monochromatic light of wavelength $589\;nm$ is incident from air on a water surface. What is the wave length frequency and speed of reflected light ? $\mu$ of water is 1.33

asked May 26, 2016 by meena.p

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Ethyl chloride is concerted into diethyl ether by

asked Nov 24, 2015 by meena.p

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The alkyl halide is conuerted into an alcohol by

asked Nov 24, 2015 by meena.p

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Industrial preparation of chloroform employs acetone and

asked Nov 24, 2015 by meena.p

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Which one is formed when sodium phenoxide is heated with ethyl iodide ?

asked Nov 24, 2015 by meena.p

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Phorgene is a common name for

asked Nov 24, 2015 by meena.p

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Ethylidene chloride is a /an __________

asked Nov 24, 2015 by meena.p

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Which of the following is an example of ricdihalide ?

asked Nov 24, 2015 by meena.p

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Which of the following alkyl halides will under go $SN_1$ reaction most readily ?

asked Nov 24, 2015 by meena.p

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A primaryalkyl halide would prefer to under go _________

asked Nov 24, 2015 by meena.p

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Which is not a aromatic compound ?

asked Nov 24, 2015 by meena.p

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The ratio of $\sigma$ and $\pi$ bonds in benzene is

asked Nov 23, 2015 by meena.p

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Aspirin is :

asked Nov 23, 2015 by meena.p

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Which of the following is an insecticide ?

asked Nov 23, 2015 by meena.p

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Benzene diazonium chloride on hydrolysis gives,

asked Nov 23, 2015 by meena.p

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When Sodium benzonole is heated with soda lime we get,

asked Nov 23, 2015 by meena.p

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In the sulphonation of benzene, the electrophils involved as :

asked Nov 23, 2015 by meena.p

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Grammexane is

asked Nov 23, 2015 by meena.p

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which of the following acids is strongest ?

asked Nov 23, 2015 by meena.p

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Nitrobenzene on electrolytic reduction in strong sulphuric acid solution gives

asked Nov 23, 2015 by meena.p

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Benzene was discovered by

asked Nov 23, 2015 by meena.p

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Coal - tar is a main source of :

asked Nov 23, 2015 by meena.p

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The nitro group in nitrobenzene is

asked Nov 23, 2015 by meena.p

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Nitration of benzene is :

asked Nov 23, 2015 by meena.p

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The benzene molecules is

asked Nov 23, 2015 by meena.p

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The C-C-C bond angle in benzene is

asked Nov 23, 2015 by meena.p

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Distributed derivatives of benzene are of

asked Nov 23, 2015 by meena.p

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The number of $\pi$ electrons in benzene molecule is

asked Nov 23, 2015 by meena.p

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The Carbon- Carbon bond length in benzene molecule is

asked Nov 23, 2015 by meena.p

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The ring structure of benzene was first proposed by :

asked Nov 23, 2015 by meena.p

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Which of the following halokanes is most reactive ?

asked Nov 23, 2015 by meena.p

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A compound called chloral whose formula is $ C_2Cl_3OH$ is a/an :

asked Nov 23, 2015 by meena.p

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In the reaction $R_X \to (A) \to (B)$ the product (B) is :

asked Nov 23, 2015 by meena.p

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Maximum no of molecules of $CH_3I$ that can react with a molecule of $CH_3NH_2$ is :

asked Nov 23, 2015 by meena.p

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Which of the following is added to chloroform to slow down its acrial oxidization in presence of light ?

asked Nov 23, 2015 by meena.p

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Freon used as refrigerant is :

asked Nov 23, 2015 by meena.p

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Among the halogens the one which is oxidised by nitric acid is :

asked Nov 23, 2015 by meena.p

2 answers

Which of the following is a primary halide ?

asked Nov 23, 2015 by meena.p

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