Description : Litharge is (A) Lead oxide (B) Zinc oxide (C) Zinc sulphide (D) Cellulosic photographic material
Last Answer : (A) Lead oxide
Description : Exposure of a photographic plate to produce a latent image is an example of __________ reaction. (A) Very slow (B) Very fast (C) Photochemical (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Photographic plates are covered with black paper because (a) the cellulose acetate of the paper must remain fresh (b) sunlight is easily absorbed by black paper and it helps develop the film ... paper prevents contact with light (d) the conversion of silver bromide to metallic silver is essential
Last Answer : Ans:(c)
Description : Function of sodium thiosulphate (hypo) in development of photographic film/plate is to (A) Brighten the faint images (B) Remove metallic silver (C) Convert silver chloride to silver (D) Remove unexposed silver halide
Last Answer : (D) Remove unexposed silver halide
Description : Zeolite is used in the (A) Water treatment (B) Glass manufacture (C) Hydrogenation of fatty oil as a catalyst (D) Development of exposed photographic plate
Last Answer : (A) Water treatment
Description : One of the following is a device that detects charged particles but does NOT show their tracks. Is this device the: w) spark chamber x) photographic plate y) scintillation counter z) bubble chamber
Last Answer : ANSWER: Y -- SCINTILLATION COUNTER
Description : In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by__________
Last Answer : In the Froth Floatation process, zinc sulphide and lead sulphide can be separated by__________ A. ... C. using depressent D. using froth stablisers
Description : Philosopher’s wool contains zinc as its (a) oxide (b) bromide (c) nitrate (d) sulphide
Last Answer : Ans:(a)
Description : Zinc sulphide is commonly used as (1) fungicide (2) herbicide (3) rodenticide(4) deodorant
Last Answer : rodenticide
Description : Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve complexes:
Last Answer : Extraction of `Ag` from sulphide ore and removal of unreacted silver bromide from phorographic plate involve ... (3))_(2)]^(3-)` respectively
Description : Which, of the following radiations has the least wavelength?
Last Answer : γ – rays
Description : Which, of the following radiations has the least wavelength? (1) X-rays (2) a-rays (3) g-rays (4) b-rays
Last Answer : (3) g-rays Explanation: X-rays - smaller than 10 nano metre gamma- rays - 0.0005 to 0.1 nano metre alpha-rays - 125 nano metre
Description : Which of the following radiations is the least penetrating? (A) α-rays (B) β-rays (C) γ-rays (D) X-rays
Last Answer : (A) α-rays
Description : Which, of the following radiations has the least wavelength ? (1) X-rays (2) a-rays (3) g-rays (4) b-rays
Last Answer : g-rays
Description : What effect does the shielding of the screen grid by the control grid have on plate current in beam-forming tetrodes?
Last Answer : By increasing the number of electrons that reach the plate, plate current is increased.
Description : The illustrated lead acid battery is about to be placed in service. The negitive plate, labeled 'E', is made of_______. EL-0031 A. sponge lead (Pb) B. lead peroxide (PbO2) C. lead sulfate (PbSO4) D. zinc oxide (ZnO2)
Last Answer : Answer: A
Description : A zinc plate is attached to the knob of a negatively charged electroscope. What will happen to the leaves of the electroscope when ultraviolet light is shown on the zinc plate. Will the leaves: w) collapse at once x) gradually come together y) gradually spread further apart z) remain unaffected
Last Answer : ANSWER: X -- GRADUALLY COME TOGETHER
Description : How does photographic image and film differ from other art forms like painting?
Last Answer : Andre Bazin
Description : Oh dear, it really is the end! The pockyclips is upon us! Photographic proof!
Last Answer : Ha, Bella and Rooey may beg to differ with your last sentence. ;)
Description : How does photographic memory work? Can you develop it?
Last Answer : Eidetic memory, or photographic memory seems to be innate. All memory can be improved with practice but it is unlikely that you can develop eidetic memory if you were not wired that way.
Description : The focal length of the lens in a photographic camera is 5 cm. What is the power of the lens? -Do You Know?
Last Answer : P=100/f (in cms) =100/5 1m= 100cm 0.2m= 20cm Hence,the power is 0.2 D The lens is convex as it is positive
Description : A good photographic print is obtained by an exposure of 2s at a distance of 1m from a 60 candela lamp. What time of exposure must be given to get equa
Last Answer : A good photographic print is obtained by an exposure of 2s at a distance of 1m from a 60 candela lamp ... at a distance of 2m from a 200 cadela lamp ?
Description : What were Richard avedon's jobs before photographic career?
Last Answer : What is the answer ?
Description : Where can I buy photographic reflectors?
Last Answer : One of the easiest places to purchase photographic reflectors would be on Amazon.com. There is also http://www.adorama.com or http://www.bhphotovideo.com.
Description : What are the purposes of photographic reflectors ?
Last Answer : The reflector allows the light to bounce back off your subject and highlighting their face and body. The reflectors also deter shadows from occuring.
Description : Silver halides are used in photographic plates because they are (a) Oxidised in air (b) Colourless (c) Easily soluble in a hypo solution (d) Readily reduced by light
Last Answer : Ans:(d)
Description : The chemical used in developing photographic films is – (1) silver bromide (2) hypo (3) sodium sulphate (4) hydroquinone
Last Answer : (1) silver bromide Explanation: Tritium is a radioactive isotope of hydrogen. It is the lightest radioactive element.
Description : Which halide is used in making sensitive emulsion on photographic film? (1) Sodium chloride (2) Silver bromide (3) Silver iodide (4) Silver chloride
Last Answer : (2) Silver bromide Explanation: Silver bromide, a soft, paleyellow, water insoluble salt well known for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.
Description : Silver halides are used in photographic plates because they are - (1) oxidised in air (2) soluble in hyposolution (3) reduced by light (4) totally colourless
Last Answer : (3) reduced by light Explanation: The light-sensitive chemicals used in photographic film and paper are silver halides. Silver halides are used in photographic film and photographic paper, including ... - meaning that it can undergo development which turns the entire crystal into metallic silver.
Description : Winch of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates
Last Answer : (1) have low penetrating power Explanation: X-rays and gamma rays are photons, i.e. high-energy light-waves. When emitted by a source, for example, radium or cobalt, located outside the body, they ... they can be used in diagnostic medicine to image human bones or human organs made opaque by a dye.
Description : Photographic films are coated with?
Last Answer : Silver Bromide
Description : The focal length of the lens in a photographic camera is 5 cm. What is the power of the lens?
Last Answer : + 20 D
Description : Acrylonitrile is mainly used in the __________ industry (A) Polymer (B) Printing (C) Dyeing (D) Photographic
Last Answer : (A) Polymer
Description : Photographic plates are coated with (A) Silver nitrate (B) Silver halide (C) Calcium silicate (D) Metallic silver
Last Answer : (B) Silver halide
Description : Hydrazine is largely used (A) As a starting material for 'hypo' (B) In photographic industry (C) As rocket fuel (D) In printing industry
Last Answer : (C) As rocket fuel
Description : Aryl benzene sulphonate (ABS) is a (A) Detergent (B) Plasticiser for unsaturated polyester (C) Starting material for the synthesis of glycerine (D) Coating ingredient for photographic film
Last Answer : (A) Detergent
Description : Acrylonitrile is mainly used in the __________ industry. (A) Polymer (B) Printing (C) Dyeing (D) Photographic
Last Answer : (C) Dyeing
Description : An I/O device which provides photographic outputs for printing galleys, is the 1) Camera printer 2) Automatic typesetter 3) Radix printer 4) All of these
Last Answer : 4) All of these
Description : Reconnaissance is best done with the help of (A) Aerial photographic survey (B) Cadastral surveys (C) Topographical surveys (D) Triangulation surveys
Last Answer : Answer: Option A
Description : JPEG is: A. Joint Photographic Experts Group B. Joint Photographic Experts General C. Joint Photo Experts Group D. Joint Photographic Eminent Group
Last Answer : A. Joint Photographic Experts Group
Description : PEG stands for ............... A) Joint Photo Experts Group B) Joint Photogenic Experts Group C) Joint Photographic Experts Group D) Joint Photoelectric Experts Group
Last Answer : C) Joint Photographic Experts Group
Description : They patented the Autochrome colour process in 1903 and specialised in photographic products for the next couple of decades. Their business was eventually acquired by the Ilford company. Who are we talking about
Last Answer : Lumière Brothers.
Description : Compounds of iodine are NOT used for which of the following? w) as a refrigerant x) in photographic film y) as an essential part of diet z) as an antiseptic
Last Answer : ANSWER: W -- AS A REFRIGERANT
Description : Which of the following is/are side effects of scan conversion? a. Aliasing b. Unequal intensity of diagonal lines c. Over striking in photographic applications d. Local or Global aliasing (1) a and b (2) a, b and c (3) a, c and d (4) a, b, c and d
Last Answer : a, b, c and d
Description : The chemical used in developing photographic films is (1) silver bromide (2) hypo (3) sodium sulphate (4) hydroquinone
Last Answer : silver bromide
Description : Silver halides are used in photographic plates because they are (1) oxidised in air (2) soluble in hyposolution (3) reduced by light (4) totally colourless
Last Answer : reduced by light
Description : Which of the following is not true about X-rays? (1) have low penetrating power (2) travel with the speed of light (3) Can be reflected or refracted (4) can affect photographic plates
Last Answer : have low penetrating power
Description : Which of the following is generally considered as opaque surface towards radiations? (A) Gases (B) Solids (C) Liquids (D) Both (B) and (C)
Description : Which one of the following statements is correct? (A) During the day, earth reflects solar radiation (B) During the day, earth reflects both solar radiations the emission from its surface (C) During the night, earth emits radiation from its surface (D) All of these
Last Answer : Answer: Option D