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1- wave velocity is related toa- period b-wavelength c-amplitude d-all of these2- wave amplitude is related toa- wave velocity b- frequency c- energy d-wave length3-which of the following radiation has the smallest frequency?a- infrared b- visible c- ultraviolet d-x-rays4-light can travel to the earth from a distant star but soundcannot.why is it?a- light is an electromagnetic wave and sound requires amediumb- the sun does not make soundc- light is a longitudinal wave and sound is a transversewaved-the statement is false both will travel in empty space5- resonance occurs whena- two different objects vibrate with different frequenciesb- two different objects produce beatsc- an object having certain natural frequency is set invibration by second object vibrating at that frequency.d- an object produces a sound.6- when oscillator is driven in resonance,a- there are no standing wavesb-all natural frequencies are presentc- there is maximum energy transferd- any driving frequency may be used.7-imags of objects are formed by lenses because ofa- refraction b-diffraction c-internal reflectn d-all ofthese8- complete destructive interference occurs for two waves ofthe same amplitude and frequency when the waves are out of phaseby:a- zero degreeb- 90 degreesc- 180 degreesd-360 degrees9-what is the wavelength in meters of radio waves produced bya radio station with a frequency of 1400 KHz?a- 2.1 X 10^7 mb-2.1 X 10 ^12mc- 4.23 X 10 ^14d- 2.1 X 10^2m10- what is the frequency in hertz of a sound wave( v=340 m/s)with wavelength of 0.20m?a- 1.7 X 10^3 Hzb- 17 X 10^3 Hzc- 1.7 X 10^2d- 68Hz11- a series of ocean waves each 6.0m from crest tocrest moving past an observer at a rate of 2.0 waves per second haswhat speed?a-3 m/s b- 12 m/s c- 33 m/s d- 720m/s12- how many times greater is the speed of red light(700nm)than the speed of violet light(400nm) in a vacuum?a- 1,100 nm b- 300 nm c- 175times d- both have the same speed13- how many times faster is the speed of light invacuum than the speed of sound in air?a- 10^6 timesb- 10^ -6 timesc- 300 X 10^6 timesd- 300 times14- the speed of light in diamond is 1.24 X 10^8 m/s. whatis the index of refraction of diamond?a- 2.42 b-242 c- 0.41 d- 1.2415- a particular material has an index of refraction of1.25. what percent of the speed of light in vacuum is the speed oflight in the material?a- 125 %b- 8%c- 12.5 %d- 80 %16- an object is placed 8cm from a converging spherical lens.The general characteristics of the image for a lens witha focal length of f=12 cm.a- real, inverted, and enlargedb- virtual, upright, and enlargedc- virtual, inverted and smallerd- real , upright and smaller17- a simple magnifying glass has a focal length of 6.0cm.an object is placed 4.0 cm from it. Give the characteristics of theimage.a- virtual, inverted andsmallerb- real, inverted and enlargedc- virtual, upright and enlargedd- real, upright and smaller
Discuss the principle of segregation? Explain why is it important? Determine the concept of dominance? How does dominance differ from incomplete dominance.
what happens to a primary pit field as a meristematic cell differentiates into a sieve cell ( what does it become and how)
For a microbiology experiment, you require a bacterial culture of 5.4 × 106 cells/ml. You think your suspension is at the right concentration,
How many chromosomes would a (haploid, diploid,tetraploid) cellcontain if it normally had 20 chromosomes per somatic cell?
question 1 what are some unique structural features of cardiac muscle?question 2 what are intercalated discs and what
Describe the sympathoadrenal system control of blood flow. Include the neurotransmitter and effect in the arterioles of the viscera, the neurotransmitter and effect in the arterioles of skeletal muscle, and the hormonal effect in the arterioles of..
Every cell in the human body has two alleles that condense into single chromosomes held together through a centromere. These sister chromaatids replicate and pair with newly made homologous chromosomes.
Gas exchange within the lungs and body tissues is vital for life to exist.1- Briefly explain the gas exchange that occurs in the lung tissue and the body tissue for oxygen and carbon dioxide.
q1. metric conversions using dimensional analysis the key to using dimensional analysis is the right use of conversion
Which one of the following statements about enzyme catalyzed reactions is FALSE?
Skin color in fish is inherited via single gene with four different alleles. what type of gene system is described.
Draw a diagram of the poly-adenylation process. How do we know that the Poly A tail is added post-transcriptionally?
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