The nature of X-RAY spectrum is -Science

The nature of X-RAY spectrum is -Science
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In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : (3) Ultraviolet

Most fiber optic light sources emit light in which spectrum? ∙ A. visible ∙ B. infrared ∙ C. ultraviolet ∙ D. X-ray

Description : Most fiber optic light sources emit light in which spectrum? ∙ A. visible ∙ B. infrared ∙ C. ultraviolet ∙ D. X-ray

Last Answer : B. infrared

Most fiber-optic light sources emit light in which spectrum? ∙ a. Visible ∙ b. Infrared ∙ c. Ultraviolet ∙ d. X-ray

Description : Most fiber-optic light sources emit light in which spectrum? ∙ a. Visible ∙ b. Infrared ∙ c. Ultraviolet ∙ d. X-ray

Last Answer : ∙ b. Infrared

The continuous X-ray spectrum is obtained due to the effect called a) Braking radiation b) Bremsstrahlung c) both a & b d) none of a & b

Description : The continuous X-ray spectrum is obtained due to the effect called a) Braking radiation b) Bremsstrahlung c) both a & b d) none of a & b

Last Answer : b) Bremsstrahlung

The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Description : The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: w) ir x) ultra-violet y) rf z) gamma ray

Last Answer : ANSWER: X -- ULTRA-VIOLET

In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Description : In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? (1) Visible (2) Infrared (3) Ultraviolet (4) X-ray

Last Answer : Ultraviolet

In a certain spectrum produced by a glass prism of dispersive power `0.0305,` it is found that the refractive index for the red ray is `1.645.`and tha

Description : In a certain spectrum produced by a glass prism of dispersive power `0.0305,` it is found that the refractive index for the red ray is `1.645.`and tha

Last Answer : In a certain spectrum produced by a glass prism of dispersive power `0.0305,` it is found that ... . What is the refractive index for the yellow ray?

When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is - (1) the violet ray (2) the red ray (3) the green ray (4) the blue ray

Description : When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is - (1) the violet ray (2) the red ray (3) the green ray (4) the blue ray

Last Answer : (2) the red ray Explanation: Red is deviated the least and violet the most.

The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: A. I r B. ultra-violet C. r f D. gamma ray

Description : The region of the electromagnetic spectrum immediately above the frequencies to which the human eye is sensitive is called: A. I r B. ultra-violet C. r f D. gamma ray

Last Answer : B. ultra-violet

The photoelectric effect is a demonstration of: w) the wave nature of light x) the particle nature of light y) Compton scattering z) the continuous spectrum of radiation

Description : The photoelectric effect is a demonstration of: w) the wave nature of light x) the particle nature of light y) Compton scattering z) the continuous spectrum of radiation

Last Answer : ANSWER: X -- THE PARTICLE NATURE OF LIGHT 

What are primary colours? (a) Colours of the rainbow (b) Colours in the spectrum of white light (c) Colours which cannot be produced by mixing other colours (d) Colours found in nature

Description : What are primary colours? (a) Colours of the rainbow (b) Colours in the spectrum of white light (c) Colours which cannot be produced by mixing other colours (d) Colours found in nature

Last Answer : Ans:(c)

It is a science of measuring light throughout the entire electromagnetic spectrum ∙ A. Radiometry ∙ B. Photometry ∙ C. Ophthalmology ∙ D. Optometry

Description : It is a science of measuring light throughout the entire electromagnetic spectrum ∙ A. Radiometry ∙ B. Photometry ∙ C. Ophthalmology ∙ D. Optometry

Last Answer : A. Radiometry

12. Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed: -Chemistry-10

Description : 12. Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed: -Chemistry-10

Last Answer : Answer. hope this helps you

3. Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: -Chemistry-10

Description : 3. Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: -Chemistry-10

Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: ... image: Virtual, erect and diminished image is formed between O and F on the same side of object.

10. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed. -Physics-10

Description : 10. An object 5 cm in length is held 25 cm away from a converging lens of focal length 10 cm. Draw the ray diagram and find the position, size and the nature of the image formed. -Physics-10

Last Answer : Height of the Object, h0 = 5 cm Distance of the object from converging lens, u = -25 cm Focal length of a converging lens, f = 10 cm Using lens formula, Thus, the image is inverted and formed at a distance of 16.7 cm behind the lens and measures 3.3 cm. The ray diagram is shown below.

Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of a concave mirror (iii) in front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Description : Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed: (i) at the centre of curvature of a concave mirror (ii) between the pole P and focus F of ... front of a convex mirror (iv) at 2F of a convex lens (v) in front of a concave lens -Physics

Last Answer : Answer. Nature of image: Real, inverted and same size image is formed at the centre of curvature. Nature of image: Virtual, enlarged and erect image is formed behind the mirror. Nature of image: Virtual ... : Virtual, erect and diminished image is formed between O and F on the same side of object.

Enlist the conclusions drawn by Rutherford from his α-ray scattering experiment. -Science

Description : Enlist the conclusions drawn by Rutherford from his α-ray scattering experiment. -Science

Last Answer : Rutherford drawn following conclusion from his α-ray scattering experiment. α-particles passed through the gold foil without any deflection concluding the empty space inside the atom. Deflection is observed in ... and mass of the gold atom were concentrated in a very small volume within the atom.

Explain why a ray of light passing through the centre of curvature of concave minor gets reflected along the same path. -Science

Description : Explain why a ray of light passing through the centre of curvature of concave minor gets reflected along the same path. -Science

Last Answer : The light falling on the centre of curvature is reflected back along the same path because incident ray falls on the mirror along the normal to the reflecting surface.

If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-8 -Physics

Description : If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-8 -Physics

Last Answer : Ray NQ, as it has to be parallel to ray OS.

Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______. (1) light waves (2) electromagnetic waves (3) electric waves (4) magnetic waves

Description : Radio waves, microwaves, infra-red spectrum, ultraviolet rays, X-rays and gamma rays are classified as ______. (1) light waves (2) electromagnetic waves (3) electric waves (4) magnetic waves

Last Answer : (2) electromagnetic waves Explanation: Electromagnetic radiation is the radiant energy released by certain electromagnetic processes. It consists of electromagnetic waves which are synchronized oscillations of electric and magnetic fields that propagate at the speed of light through a vacuum.

Which of the following is not part of the optical spectrum? a. Infrafed b. Ultraviolet c. Visible color d. X-rays

Description : Which of the following is not part of the optical spectrum? a. Infrafed b. Ultraviolet c. Visible color d. X-rays

Last Answer : d. X-rays

Which of the following is not a part of the optical spectrum? ∙ A. infrared ∙ B. ultraviolet ∙ C. visible color ∙ D. x-rays

Description : Which of the following is not a part of the optical spectrum? ∙ A. infrared ∙ B. ultraviolet ∙ C. visible color ∙ D. x-rays

Last Answer : ∙ D. x-rays

Which of the following is not part of the optical spectrum? ∙ a. Infrafed ∙ b. Ultraviolet ∙ c. Visible color ∙ d. X-rays

Description : Which of the following is not part of the optical spectrum? ∙ a. Infrafed ∙ b. Ultraviolet ∙ c. Visible color ∙ d. X-rays

Last Answer : ∙ d. X-rays

The Doppler Effect predicts that the spectrum of light from a visible body moving AWAY from the Earth will experience a shift in frequency when viewed from Earth. This particular shift is known as the: w) Blue shift x) Neutral shift y) Red shift z) Dirac shift

Description : The Doppler Effect predicts that the spectrum of light from a visible body moving AWAY from the Earth will experience a shift in frequency when viewed from Earth. This particular shift is known as the: w) Blue shift x) Neutral shift y) Red shift z) Dirac shift

Last Answer : ANSWER: Y -- RED SHIFT

When a solid material is heated, it always: w) emits a discrete radiation spectrum x) glows red y) emits a continuous radiation spectrum z) emits only visible radiation

Description : When a solid material is heated, it always: w) emits a discrete radiation spectrum x) glows red y) emits a continuous radiation spectrum z) emits only visible radiation

Last Answer : ANSWER: Y -- EMITS A CONTINUOUS RADIATION SPECTRUM

The dark lines constituting the absorption spectrum exhibited by sunlight are frequently called: w) Fresnel lines x) Fraunhofer lines y) Fermi lines z) Franklin lines

Description : The dark lines constituting the absorption spectrum exhibited by sunlight are frequently called: w) Fresnel lines x) Fraunhofer lines y) Fermi lines z) Franklin lines

Last Answer : ANSWER: X -- FRAUNHOFER LINES

A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which one of the following is the color of light that undergoes the greatest deviation from its original direction. Is it: w) red x) yellow y) blue z) violet

Description : A beam of white light is passed through a diffraction grating and the resulting spectrum is allowed to fall on a screen. Which one of the following is the color of light that undergoes the greatest deviation from its original direction. Is it: w) red x) yellow y) blue z) violet

Last Answer : ANSWER: W -- RED

When white light is passed through a double slit which of the following statements is TRUE: w) Each of the bright bands is dispersed into a spectrum x) Only the central band is dispersed into a spectrum y) All the bright bands except the central one are dispersed into a spectrum z) Each band has a single color different from its neighboring bands

Description : When white light is passed through a double slit which of the following statements is TRUE: w) Each of the bright bands is dispersed into a spectrum x) Only the central band is dispersed into ... one are dispersed into a spectrum z) Each band has a single color different from its neighboring bands 

Last Answer : ANSWER: Y -- ALL THE BRIGHT BANDS EXCEPT THE CENTRAL ONE ARE DISPERSED INTO THE SPECTRUM

Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Description : Which region of the electro-magnetic spectrum will cause sunburns? w) ultraviolet x) infrared y) visible

Last Answer : ANSWER: W -- ULTRAVIOLET

Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction. -Science

Description : Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction. -Science

Last Answer : Raw Materials Required For preparation of soap in laboratory are :Vegetable oilSodium HydroxideCommom salt Test to determine the nature of reaction mixture: When a red litmus paper is dipped in the ... colour to blue. Hence, the reaction mixture of the saponification reaction is basic in nature.

What have we learned from science about the nature of learning?

Description : What have we learned from science about the nature of learning?

Last Answer : There have been many studies of learning styles done There is a summary of the research in this blog article critical of one study pooh-poohing learning styles.

Is the manicured lawn a shrine to the false notion that man is no longer at the behest of nature because he has killed god and conquered his enviornment with science and technology? Is it a standing challenge, for God to prove man otherwise?

Description : Is the manicured lawn a shrine to the false notion that man is no longer at the behest of nature because he has killed god and conquered his enviornment with science and technology? Is it a standing challenge, for God to prove man otherwise?

Last Answer : Sigh. Sometimes a lawn is just a lawn. While I agree with you that the use of chemicals on lawns and vanity watering must stop as a waste of resources, man’s impulse to groom his own little slice of wilderness is ancient. Look at the Olmstead Brothers and the park legacy they left.

According to a report in the science journal 'Nature Geoscience' twenty four out of thirty-three deltas, in the world are sinking and thus shrinking. The Indian delta in the 'Greater Peril' category is (1) Brahmani (2) Godavari (3) Mahanadi (4) Krishna

Description : According to a report in the science journal 'Nature Geoscience' twenty four out of thirty-three deltas, in the world are sinking and thus shrinking. The Indian delta in the 'Greater Peril' category is (1) Brahmani (2) Godavari (3) Mahanadi (4) Krishna

Last Answer : (4) Krishna Explanation: The study found that some of the Indian deltas -- Brahman' delta in Orissa, and Godavari and Mahanadi in Andhra Pradesh - are at a greater risk as the rate of sediment ... maximum relative sealevel rise of 13-150 mm per year is seen in the Chao Phraya delta in Thailand.