please anybody tell reference book for gravitational force, quantum gravity, black holes.
What is your background in math and physics?
i am BE graduate. i studied math but not much in physics.
I'd suggest you start with Relativity Simply Explained, by Gardner. Then, for more mathematical depth, you could try Spacetime Physics by Taylor and Wheeler and Exploring Black Holes by Taylor and Wheeler. After that, some books to get you started on quantum gravity at a popular level are Susskind's The Black Hole War and Smolin's Three Roads to Quantum Gravity.
k thank u very much
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