Moderate
0 likes
Question
For which value of the angle of incidence in refraction of light is Snell’s law not applicable?
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
01 Mark
2025
Answer
Snell’s law is not applicable when the angle of incidence is 0°.
Related Questions
More WBBSE Moderate level questions
1/12
Easy
Q.
What type of lens is used as a magnifying glass?
A.
Convex lens Explanation: Convex lens forms virtual, erect, magnified image for objects...
View Question
Easy
Q.
Which type of mirror produces virtual, diminished and erect image?
A.
(c) Convex mirror Explanation: A convex mirror always forms an image which...
View Question
Easy
Q.
Which parameter remains unaltered during refraction of light?
A.
(c) Frequency Explanation: During refraction, a light ray bends because its speed...
View Question
Moderate
Q.
State the resistance of 220 V – 100 W bulb
A.
Power (P) = Resistance (R) = = = = 484 Ω
View Question
Moderate
Q.
Write whether the following statement is true or false: If coefficient of linear expansion of...
A.
True Explanation: Coefficient of cubical expansion γ = 3 × coefficient of...
View Question
Moderate
Q.
What is the number of molecules present in 16 g of O₂ at S.T.P.?
A.
3.011 × 10²³ Explanation: Given mass = 16 g Molecular mass =...
View Question
Moderate
Q.
Write whether the following statement is true or false: According to Charles’ law, at (–)...
A.
False Explanation: Charles' law states volume becomes zero at absolute zero (-273°C),...
View Question
Moderate
Q.
Write the name of monomer of a polymer which is used to prepare non-stick utensils.
A.
Tetra fluoro ethylene Explanation: Polytetrafluoroethylene (PTFE or Teflon) is used for non-stick...
View Question
Moderate
Q.
Write down the IUPAC name of the following organic compound
A.
2-Bromopropane or (1) CH₃–CH₂–CH₂–OH → Propane-1-ol(2) CH₃–CH(OH)–CH₃ → Propane-2-ol
View Question
Moderate
Q.
Name the metal which is extracted in thermite process.
A.
Fe Explanation: Thermite process reduces metal oxides using Al at high temperature...
View Question
Moderate
Q.
Fill up the blank: CaC₂ + N₂ → ____ + C
A.
CaNCN / CaCN₂ (Calcium cyanamide) Explanation: Haber's process uses Fe as catalyst...
View Question
Moderate
Q.
What happens when an iron spoon is dipped into acidified copper sulphate solution?
A.
When an iron spoon is dipped into acidified copper sulphate solution, a...
View Question