Physics question and answers for September 08, 2023
- Q 1. What is nanophotonics? Give an example of a manifestation ofnanophotonics.2. What are free carriers in plasmonic semiconductornanocrystals?3. What is the main difference between surface plasmon resonance(SPR) and localized surface...
- Q A 35-year-old patent clerk needs glasses of 50-cm focal lengthto read patent applications that he holds 25 cm from his eyes. Fiveyears later, he notices that while wearing the same...
- Q 1)An object of mass m = 0.25kg has ahorizontal spring attached to its left side, andslides along a frictionless surface. The spring constant is ? =0.4 N . At t...
- Q Draw band structure diagrams for the following, highlighting oneach diagram the valence band, conduction band and the bandgap.(a) Au,(b) SiO2(c) intrinsic Ge(d) p-type Ge(e) n-type GeOn each of the band...
- Q Since the floor is rough, it exerts both a normal forceN1 and a frictional forcef1 on the ladder. However, since the wall isfrictionless, it exerts only a normal force N2on...
- Q Julie throws a ball to her friend Sarah. The ball leaves Julie’shand a distance 1.0 m above the ground with an initial speed of 10m/s at an angle 30◦ with...
- Q A house has well-insulated walls. It contains a volume of 90m3 of air at 295 K.(a) Consider heating it at constant pressure. Calculate theenergy required to increase the temperature of...
- Q If a charge \"Q\" is removed from the inside surface of a hollowsphere of radius \"a\" with infinite conductivity. (a)How much forceis required to remove the charge from the sphere?...
- Q A ball is thrown toward a cliff of height h with aspeed of 27m/s and an angle of 60? above horizontal. It lands onthe edge of the cliff 3.9slater.Part AHow...
- Q 1) A ball is thrown from the top of a roof at an angle of 20 owith respect to the vertical. 1 s later a ball is dropped from thetop...
- Q 2. Draw a diagram (concept map) that depicts the relationshipsbetween resolution, numerical aperture, refractive index, depth offocus, magnification, working distance, and wavelength. Be sure toindicate whether relationships are positively or...
- Q An ideal gas is taken through a complete cycle in three steps:adiabatic expansion with work equal to I25 J, isothermalcontraction at 325 K, and increase in pressure at constantvolume.(a) Draw...
- Q A 0.414 kg object is at rest at the origin of a coordinatesystem. A 3.17 N force in the positive x direction acts onthe object for 2.98 s. What is...
- Q Briefly describe the principle of surface force apparatus
- Q Two newly discovered planets follow circular orbits around a starin a distant part of the galaxy. The orbital speeds of the planetsare determined to be 44.2 km/s and 57.5 km/s....
- Q The coefficient of kinetic friction between the 2.0 kg block infigure and the table is 0.290.a)Whatis the acceleration of the 2.0 kg block?
- Q The mean distance between the Earth and the Sun is 1.50
- Q Two manned satellites approaching one another at a relativespeed of 0.300 m/s intend to dock. The first has a mass of 4.00 ✕103 kg, and the second a mass of...
- Q Define the following terms using a sentence (or two in the caseof two terms):e. Momentum relaxation timef. Carrier lifetimeg. Average drift velocityh. Scattering (Ionized impurity and lattice)i. Recombination levelj. Diffusionk....
- Q You plan to project an inverted image 30.0 cm to the right of anobject. You have a diverging lens with focal length -4.00 cmlocated 5.10 cm to the right of...
- Q a. A relatively rare transition of the hydrogen atom emits aradio photon with with ? = 21 cm. This emission line is extremelyimportant to astronomers for two main reasons: it...
- Q What is the diameter of Planet X in Earth diameters and in AU?(The diameter of Earth is 1.3 × 107 m.)
- Q A uniform disk with radius 0.310 m and mass 30.0 kg rotates in ahorizontal plane on a frictionless vertical axle that passesthrough the center of the disk. The angle through...
- Q A gun is placed on a cliff of height 60 m above ground level,and fires a projectile at an angle of 50 degrees. The muzzlevelocity of the projectile is 139...
- Q Airplane travelers sometimes note that their cosmetics bottlesand other containers have leaked during a flight. What might causethis? (b) When blood pressure is measured, why must the cuff beheld at...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!