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Start learning 50% faster. Sign in nowPteridophytes are a group of plants that include ferns, horsetails, and clubmosses. They are characterized by having vascular tissues (xylem and phloem) for the transport of water, minerals, and nutrients. The term "cryptogams" historically referred to plants that reproduce by spores and lacked seeds. So, pteridophytes are vascular cryptogams.
Calculate the speed of light in diamond if its refractive index is 2.4.
(Speed of light = 3 × 10⁸ m/s)
What process causes white light to split into its constituent colors?
Which mirror always forms virtual, erect, and diminished image?
The group velocity of matter waves associated with a moving particle is:
A force of 50 N moves a body 2 meters in the direction of the force. Find work done.
What is the work done if a force of 15 N moves a body by 3 meters in the direction of force?
In a concave mirror which of the following pair of position of object – size of the image is correct?
I. At infinity – point sized
The stress–strain graph for two wires A and B is shown. Wire A has a steeper linear region than B. This indicates that: