Physics
Grade-10
Easy
Question
A triangular glass prism has ____ rectangular faces.
- 0
- 2
- 1
- 4
Hint:
A triangular prism has 5 faces (3 rectangular and 2 triangular), 9 vertices and 6 edges.
The correct answer is: 4
A triangular prism has 5 faces (3 rectangular and 2 triangular), 9 vertices and 6 edges.
Related Questions to study
Physics
The angle between the rectangular faces of a prism is called the ____.
- Angle of the prism
- Angle of incidence
- Angle of refraction
- Angle of dispersion
The angle between the rectangular faces of a prism is called the ____.
PhysicsGrade-10
- Angle of the prism
- Angle of incidence
- Angle of refraction
- Angle of dispersion
Physics
The angle between the incident ray and the emergent ray when light gets refracted through a prism is called the _____.
- Angle of incidence
- Angle of refraction
- Angle of deviation
- Angle of diffraction
The angle between the incident ray and the emergent ray when light gets refracted through a prism is called the _____.
PhysicsGrade-10
- Angle of incidence
- Angle of refraction
- Angle of deviation
- Angle of diffraction
Physics
A triangular glass prism has ____ triangular faces.
- 2
- 3
- 1
- 4
A triangular glass prism has ____ triangular faces.
PhysicsGrade-10
- 2
- 3
- 1
- 4
Physics
Light refracts when it falls on _____ surface.
- Lens
- Glass slab
- Prism
- All of the above
Light refracts when it falls on _____ surface.
PhysicsGrade-10
- Lens
- Glass slab
- Prism
- All of the above
Biology
Match the following:

- A-2 , B-1 , C-4 , D-3
- A-3 , B-2 , C-1 , D-2
- A-4 , B-3 , C-2 , D-1
- A-1 , B-3 , C-4 , D-2
Match the following:

BiologyGrade-10
- A-2 , B-1 , C-4 , D-3
- A-3 , B-2 , C-1 , D-2
- A-4 , B-3 , C-2 , D-1
- A-1 , B-3 , C-4 , D-2
Biology
What is a change in an organism that allows for it to survive in its environment?
- Homologous
- Vestigial
- Variation
- Adaptation
What is a change in an organism that allows for it to survive in its environment?
BiologyGrade-10
- Homologous
- Vestigial
- Variation
- Adaptation
Biology
Which of these is not a problem caused by selective breeding?
- Organisms are more susceptible to illness.
- The population has less genetic variation.
- Crop yields may increase.
- None of the above
Which of these is not a problem caused by selective breeding?
BiologyGrade-10
- Organisms are more susceptible to illness.
- The population has less genetic variation.
- Crop yields may increase.
- None of the above
Biology
What does every species demonstrate in the first phase of the explanation for Darwin's theory of natural selection?
- The same traits
- Variations
- Colors
- None of the above
What does every species demonstrate in the first phase of the explanation for Darwin's theory of natural selection?
BiologyGrade-10
- The same traits
- Variations
- Colors
- None of the above
Biology
Which of the following is not a principle that Darwin identified to affect natural selection?
- Overproduction
- Adaptation
- Variation
- Replication
Which of the following is not a principle that Darwin identified to affect natural selection?
BiologyGrade-10
- Overproduction
- Adaptation
- Variation
- Replication
Biology
Which biological concept is illustrated below?



- Extinction
- Natural Selection
- Variation
- None of the above
Which biological concept is illustrated below?



BiologyGrade-10
- Extinction
- Natural Selection
- Variation
- None of the above
Biology
The process of natural selection causes evolution. What is changing over time?
- The inherited traits of a population
- The acquired traits of a population
- The inherited traits of individuals
- The acquired traits of individuals
The process of natural selection causes evolution. What is changing over time?
BiologyGrade-10
- The inherited traits of a population
- The acquired traits of a population
- The inherited traits of individuals
- The acquired traits of individuals
Biology
Survival of the fittest and evolution were proposed by which scientist?
- Charles Darwin
- Albert Einstein
- Steven Hawking
- Isaac Newton
Survival of the fittest and evolution were proposed by which scientist?
BiologyGrade-10
- Charles Darwin
- Albert Einstein
- Steven Hawking
- Isaac Newton
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Which of the following term is known as behavioural changes of individuals of a species that allow for better survival?
- Variation
- Adaptation
- Behaviour
- Environment
Which of the following term is known as behavioural changes of individuals of a species that allow for better survival?
BiologyGrade-10
- Variation
- Adaptation
- Behaviour
- Environment
Biology
What is the name of the theory that explains how all living organisms are connected and how current species adapt to their circumstances and new species emerge?
- Natural Selection
- The Circle of Life
- Descent with Modification
- Evolution
What is the name of the theory that explains how all living organisms are connected and how current species adapt to their circumstances and new species emerge?
BiologyGrade-10
- Natural Selection
- The Circle of Life
- Descent with Modification
- Evolution
Biology
Selection for behaviors that help your relatives survive and reproduce is known as __________.
- Group mentality
- Family values
- Kin selection
- Natural selection
Selection for behaviors that help your relatives survive and reproduce is known as __________.
BiologyGrade-10
- Group mentality
- Family values
- Kin selection
- Natural selection