Related Questions

"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:
A Fresnel reflection
B Fresnel refraction
C Snell's law
D None of these
A policy taken with critical illness rider benefit is being assigned. Which type of assignment would suit the intended purpose because if the life insured is diagnosed with a critical illness, he only should receive the critical illness rider claim?
A Absolute assignment
B Conditional assignment
C Loan assignment
D Collateral assignment
The photo-electric effect occurs only when the incident light has more than a certain critical
A Intensity
B Speed
C Frequency
D Wave length
When a wave propagates on a transmission line, it suffers reflection several times at
A tapping
B load end
C sending end
D sending and other end
E all of the above
There are five statements given below: i. karim earns more than Rahim but less than Raihan ii. Tarique earns more than Farid iii. Rahim earns more than Rariq iv. Raihan and Rarique earn equal amounts v. Farid earns the least amount which of the above statements prove that Tarique earns more money than Rafiq?
A I, II and III
B II, III and IV
C III, IV and V
D I, III and IV
__________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical.
A Mach
B Reynolds
C Froude
D Weber
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the total requirement of cloth?
A 2,50,00 m
B 2,25,00 m
C 2,00,000 m
D 1,50,00 m
Assam coals suffers mainly from the disadvantage of high __________ content.
A Ash
B Volatile matter
C Sulphur (4-6%)
D Moisture
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If $${\sigma _{\text{t}}}$$ is the tensile stress for the shell material, then thickness of shell is equal to
A $$\frac{{{\text{pd}}}}{{{\sigma _{\text{t}}}}}$$
B $$\frac{{{\text{pd}}}}{{2{\sigma _{\text{t}}}}}$$
C $$\frac{{{\text{pd}}}}{{3{\sigma _{\text{t}}}}}$$
D $$\frac{{{\text{pd}}}}{{4{\sigma _{\text{t}}}}}$$
The landing and takeoff of the air craft is made against the direction of wind. In no case the centre line of the runway should make an angle with the wind direction exceeding
A 10°
B 20°
C 30°
D 40°

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