Description : To obtain the most reliable sky wave propagation the ____ should be used. A. Lowest useable frequency (LUF). B. Maximum useable frequency (MUF). C. Optimum useable frequency (OUF). D. Critical frequency
Last Answer : C. Optimum useable frequency (OUF).
Description : For a given system, the minimum frequency of a standing wave is in a A. fundamental mode B. lowest mode C. highest mode D. peak mode
Last Answer : fundamental mode
Description : The compound which has the lowest boiling points is
Last Answer : The compound which has the lowest boiling points is A. `H_(2)O` B. `C_(2)H_(5)OH` C. `underset(OH) ... (OH)underset(|)CH_(2)` D. `CH_(3)OCH_(3)`
Description : What kind of solid tends to have the solid lowest melting points?
Last Answer : Solids made up of molecules
Description : Which commercial mortgage lenders charge the lowest mortgage points?
Last Answer : You will have to shop around in order to get the best rate on a mortgage. Different companies will offer you different rates based on several other factors.
Description : A flagpole stands 30 feet above the ground. The base of the flagpole reaches 10 feet into the ground. What is the vertical distance between the highest and lowest points of the flag pole?
Last Answer : 40
Description : Use the information and data given below to answer the questions Stronger intermolecular forces result in higher boiling point Strength of London forces increases with the number of electrons in the molecule ... here? (c) Why is the boiling point of HF highest while that of HCl lowest?
Last Answer : Ans :( a) In the molecules HCl, HBr and HI, dipole-dipole interaction and London forces are present. (b) Dipole moment of HCl > HBr > HI but boiling point of HCl < HBr
Description : The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and recondensed, then the liquid with the next higher boiling point is then evaporated and ... is called A. cracking B. carbonisation C. fractional distillation D. full distillation
Last Answer : Answer: C
Description : Which of the following compounds has the lowest boiling points? w) CH4 x) CCl4 y) PH3 z) PCl3
Last Answer : ANSWER: W -- CH4
Description : What is The distance between two successive points of a wave that are in phase is?
Last Answer : the wavelength
Description : The diagram below shows the propagations of a wave. Which points are in phase? (a) PQ (b) QR (c) QS (d) TQ
Last Answer : Ans:(c)
Description : If the phase difference between two points is 120° for a wave with velocity of 360 m/ and frequency 500 Hz, then path difference between the two points is – (1) 1 cm (2) 6 cm (3) 12 cm (4) 24 cm
Last Answer : (4) 24 cm
Description : In a stationary wave, nodes are at A. fixed points B. movable points C. there are no nodes D. random points
Last Answer : fixed points
Description : Pick up the correct statement from the following: (A) The surface defined by the locus of points having same phase, is called a wave front (B) The wave whose surface of constant phase are parallel planes, ... waves is important and not the absolute phase of a point on the wave (D) All of these
Last Answer : Answer: Option D
Description : A string of length L is fixed between two points. If a standing wave of 5 nodes is produced, what is the relationship between the string's length, L, and its wavelength?
Last Answer : ANSWER: WAVELENGTH = 1/2 L
Description : If the phase difference between two points is 120° for a wave with velocity of 360 m/ and frequency 500 Hz, then path difference between the two points is (1) 1 cm (2) 6 cm (3) 12 cm (4) 24 cm
Last Answer : 24 cm
Description : Compare sky wave and space wave propagation w.r.t. following points. (i) Frequency range (ii) Effect of fading (iii)Polarization (iv)Application
Last Answer : Sr. No Parameters Sky Wave Propagation Space Wave Propagation 1 Frequency range 3 MHz to 30 MHz Above 30 MHz 2 Effect of fading Problem of fading is ... horizontally Polarized 4 Application RadioBroadcasting (SW Range) Used for TV and FM broadcasting