. in phase
Description : In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above
Last Answer : (4) All of the above Explanation: In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) ... photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation.
Description : Standing waves are formed when two sets of waves of equal amplitude and frequency w) are in phase x) are in opposite phase y) move through each other in opposite directions z) are reflected from the same surface
Last Answer : ANSWER: Y -- MOVE THROUGH EACH OTHER IN OPPOSITE DIRECTIONS
Description : In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above
Last Answer : All of the above
Description : A patient of liver cirrhosis with ascitis was treated with hydrochlorothiazide 50 mg twice daily. He responded initially, but over a couple of months the diuretic action gradually diminished ... Add spironolactone 50 mg thrice daily D. Substitute hydrochlorothiazide by spironolactone 50 mg 6 hourly
Last Answer : C. Add spironolactone 50 mg thrice daily
Description : The apparent weight of a person in a lift which is moving down with uniform acceleration is _______. (1) greater than the weight when the person is stationary (2) twice the weight when the person ... than the weight when the person is stationary (4) same as the weight when the person is stationary
Last Answer : (3) less than the weight when the person is stationary
Description : Stationary wave is formed by – (1) a transverse wave superposing a longitudinal wave (2) two waves of the same speed superposing (3) two waves of same frequency travelling in the same direction (4) two waves of same frequency travelling in the opposite direction
Last Answer : (4) two waves of same frequency travelling in the opposite direction Explanation: Stationary or standing waves are formed in a medium when two waves having equal amplitude and frequency moving in ... and the reflected wave. Both longitudinal and transverse types of waves can form a stationary wave.
Description : Stationary waves are also called A. static waves B. standing waves C. progressive waves D. All of the above
Last Answer : standing waves
Description : Speed of stationary waves is A. 1 m s-1 B. 2 m s-1 C. 3 m s-1 D. zero
Last Answer : zero
Description : Stationary wave is formed by (1) a transverse wave superposing a longitudinal wave (2) two waves of the same speed superposing (3) two waves of same frequency travelling in the same direction (4) two waves of same frequency travelling in the opposite direction
Last Answer : two waves of same frequency travelling in the opposite direction
Description : Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0
Last Answer : (1) 1.0 Explanation: Since the amplitudes, frequency and the speed of both the waves are in same, hence the wavelength of the composite wave will be the same as the single wave.
Description : If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude
Last Answer : ANSWER: Z -- AMPLITUDE
Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency
Last Answer : ANSWER: W -- PROPAGATION VELOCITY
Last Answer : 2mm
Description : A microscope used in pathological laboratories forms – (1) magnified, virtual, erect, Image (2) diminished, real and erect image (3) Magnified, virtual and inverted image (4) Diminished, virtual and erect image
Last Answer : (3) Magnified, virtual and inverted image Explanation: A microscope is an instrument that produces a clear magnified image of an object viewed through it. A basic microscope is made up of two ... one a viewer sees. The final image is virtual and is inverted compared to the original object.
Description : The final image in a simple microscope is – (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect
Last Answer : (3) virtual, magnified and erect Explanation: A basic microscope is made up of two converging lenses. The first lens creates a real image which serves as the object for the second lens, and the ... a viewer sees. The final image is magnified, virtual and is inverted compared to the original object.
Description : The final image in a simple microscope is (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect
Last Answer : virtual, magnified and erect
Description : A microscope used in pathological laboratories forms (1) magnified, virtual, erect image (2) diminished, real and erect image (3) magnified, virtual and inverted image (4) diminished, virtual and erect image
Last Answer : magnified, virtual and inverted image
Description : Amplitude of modulated wave is in phase with A. output B. system C. frequency D. signal
Last Answer : signal
Description : What do you mean by standing or stationary waves?
Last Answer : A standing wave is a wave produced by interference between twomoving waves of the same frequency (usually an original wave andits reflection) which does not move but continues to oscillate atthe original frequency.
Description : Energy is not carried by (a) Transverse progressive waves (b) Longitudinal progressive waves (c) Stationary waves (d) Electromagnetic waves
Last Answer : Ans:(c)
Description : State four characteristics of stationary waves.
Last Answer : Characteristics : i) It is superposition of two progressive waves moving in opposite direction in a medium. ii) There is no transfer of energy in a medium. iii) Nodes and antinodes ... nodes or antinodes is λ/2. vii)The distance between two successive nodes and antinodes is λ/4.
Description : .As a wave travels down a spring, the amplitude slowly decreases. Why does this occur? A. The law of conservation of energy does not apply to waves. B. The energy is spread out along the entire ... due to friction as the particles in the spring rub against each other. E. all of the above
Last Answer : D. Some energy is lost due to friction as the particles in the spring rub against each other.
Description : By which Radio waves of constant amplitude can be generated? -General Knowledge
Last Answer : The answer is 'Oscillator'
Description : Do all points on standing waves vibrate with same amplitude?
Last Answer : Feel Free to Answer
Description : What does it mean when sound waves have a large amplitude?
Description : How is a wave's amplitude related to the amount of energy the wave carries?
Last Answer : There is a direct correlation between the amplitude of a wave and its energy. The greater the amplitude, the more energy it carries compared to the same wave of lower amplitude.
Description : What is it called when the crests of two waves overlap and result in increased wave amplitude?
Last Answer : kkkk
Description : Echo sounding is the technique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : (1) measure the depth of the sea Explanation: Echo sounding is the technique of using sound pulses to find the depth of water. The interval from the emission of a pulse to reception ... information is then typically used for navigation purposes or in order to obtain depths for charting purposes.
Description : Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%
Last Answer : D. 83%
Description : By which Radio waves of constant amplitude can be generated?
Last Answer : Oscillator
Description : Two sources of light are said to be coherent if __________. A. they produce waves of the same wave length B. they have the same amplitude of vibration C. they produce waves in the medium simultaneously D. they produce waves of the same amplitude
Last Answer : D. they produce waves of the same amplitude
Description : The physical quantity, which oscillates in most waves, is (i) mass (ii) energy (iii) Amplitude* (iv) wavelength
Last Answer : iii) Amplitude*
Description : In case of earthquakes, an increase of magnitude 1 on Richter Scale implies (A) a ten-fold increase in the amplitude of seismic waves. (B) a ten-fold increase in the energy of the seismic waves. ... in the amplitude of seismic waves. (D) two-fold increase in the energy of seismic waves.
Last Answer : (A) a ten-fold increase in the amplitude of seismic waves.
Description : Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : measure the depth of the sea
Description : Two waves of equal wavelength will interfere destructively most effectively under one of the following conditions. Will the interference be most effective when the waves are: w) in phase and have equal ... of phase and have equal amplitudes z) 180 degress out of phase and have unequal amplitudes
Last Answer : ANSWER: Y -- 180 DEGREES OUT OF PHASE AND HAVE EQUAL AMPLITUDES
Description : What does the stationary phase of sigmoid growth curve indicate? -Biology
Last Answer : answer:
Description : Bacteria are more sensitive to antibiotics at which phase of growth curve? a. Decline phase b. Stationary phase c. Lag phase d. Log phase
Last Answer : Ans: D
Description : Growth curve does not include following phases of bacteria – a. Decline phase b. Stationary phase c. Lag phase d. Synchronous growth
Description : Mycotoxins are formed during the end of a. Lag phase b. Log phase c. Death phase d. Stationary phase
Last Answer : Ans: A
Description : The reproduction rate is equal to death rate in which stage a. Decline phase b. Stationary phase c. Lag phase d. Log phase
Description : The most active stage in the sigmoid curve of bacteria in which maximum growth is attained a. Lag phase b. Stationary phase c. Decline phase d. Log phase
Description : Physiologically the cells are active and are synthesizing new protoplasm in which stage of the growth in bacteria a. Log phase b. Lag phase c. Stationary phase d. None of these
Last Answer : Ans: C
Description : Cells are active and synthesizing new protoplasm. This stage of growth is called a. Lag phase b. Stationary phase c. Log phase d. All of these
Description : As shown in the illustration, which of the listed actions of the synchroscope pointer is occurring? EL-0002 A. Revolving slowly in the slow direction. B. Revolving rapidly in the slow direction. C. ... stationary at the 12 o'clock position since the leading edges of the A phases are in phase.
Last Answer : Answer: C
Description : If an electric field is applied to a colloidal sol, the dispersed phase particles are found to move towards the electrode of opposite charge. If however, the dispersed phase is made stationary, the ... move in the opposite direction. What is the term used for such movement of dispersion medium ?
Last Answer : Ans. Electro osmosis.
Description : The maximum growth rate occurs in (a) stationary phase (b) senescent phase (c) lag phase (d) exponential phase
Last Answer : (d) exponential phase.
Description : Starvation proteins are produced by a culture during which of the following segments of the growth curve? A - Lag phase B- Exponential phase C- Stationary phase D- Death phase
Last Answer : Stationary phase
Description : What is the period where there is the least amount of growth in the growth curve? a. Lag phase b. Log phase c. Stationary phase d. Decline phase
Last Answer : a. Lag phase
Description : During the stationary phase of bacterial growth, the population of living cells is _____ the population of dying cells. a. greater than b. smaller than c. equal to d. increasing faster than
Last Answer : c. equal to